Alexandru B Georgescu 🇺🇦🌻🇷🇴 @AlexandruBG Twitter profile

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

10 days

Them: In the summer professors just have summer break right, you don't have classes to teach, you just get to relax, I mean why do you even go to the office? Me:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

5 months

About to teach my first class as a professor. 🎉🎉

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

1 year

I am excited to share that I will be joining the Department of Chemistry at Indiana U Bloomington @IUBChemistry this August, as an Assistant Professor. We will focus on the computational and theoretical study of correlated electron materials.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

Very interesting plot showing the timeline between a material's discovery, and the discovery of its functionality from

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

When I started my first postdoc, my advisor would ask me questions like 'What's the key question in the field? What is the limiting factor here?'. He directed me to have papers where my contribution was clear, and guided me away from trying to 'get' papers for citations. (1/5)

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Many solid state/condensed matter physicists would benefit from reading an inorganic chemistry textbook. I know I am. Different perspectives on crystal field splitting, charge transfer (and applications to catalysis), dimers etc.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

One thing I learned after Oppenheimer: it's the same Teller in Jahn-Teller (symmetry breaking) theory, the H bomb Teller-Ulam design, and Brunauer–Emmett–Teller (for adsorption of gas molecules on a surface) theory.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Want to pursue a PhD studying materials, including quantum materials (superconductors, 2D magnets and others) & materials for energy applications, like photocatalysis and other things I post about here and on youtube? Our application portal is open:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

Postdocs don't wear robes when they graduate, but it's still an important time. With my postdoc mentor @JMRondinelli .

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

I'm actively searching for Ph.D students in the computational study of quantum materials - and materials more broadly. If interested, please apply to our department this fall. See ad below and please retweet:

Job listings

Job announcements relevant to people interested in electronic structure calculations… Due to the large number of posts recently, there is currently a delay of several weeks between posts bein…

psi-k.net

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

Giving my first talk as a Prof and acknowledging my first student in this capacity and @SaraSkrabalak . #F23MRS

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

First day of professoring. Thinking of some cool things to add to my Surface Chemistry class.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

9 months

My intro to correlated electron materials passed 1000 views, thank you! I made this as an intro to the group and for incoming students. This way they can watch on their own time, and should feel more comfortable asking questions:

Intro To Correlated Electron Physics

Thank you for watching this video. You can read more about my work here: https://www.alexbgeorgescu.com/ References mentioned throughout, some mine, some rev...

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

I will be applying for faculty positions this year, in Mat Sci, Physics and Chemistry. I'll be happy to give a talk at your institution, and please send me any relevant openings ! More info about me at my link in bio.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

I made a video based on my experience interviewing for tenure-track jobs in Chemistry, Physics, and Materials Science and Engineering, and how to prepare. Hopefully this is useful to people applying this year - and maybe useful to people on committees.

How To (maybe?) get a tenure track faculty job - or at least some...

Some tips and tricks based on my experience applying for faculty positions in the US, particularly in Chemistry, Physics and Materials Science & Engineering.

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

What a gem 'Chemistry, Structure, and Function of Lone Pairs in Extended Solids' from G. Laurita and Ram Seshadri:

Chemistry, Structure, and Function of Lone Pairs in Extended Solids

ConspectusThe lone pair has been a known feature of the electronic structure of molecules for over 100 years. Beginning with the pioneering work of Lewis and others that was later developed into...

pubs.acs.org

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

I made a brief video explaining how we estimate material stability using 'convex hulls' computationally, a term not many people saw in their training. This will also help you understand terms in materials project/OQMD:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

1 year

This is a pretty nice image representing a metal-insulator transition in an oxide superlattice. Read the (open access) article here:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

4 months

Them: You're a professor now, you can't use your twitter account to randomly share pictures of penguins. Me:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

Welcome, Varsha Kumari, the first Ph.D student in the group! She will be co-advised with @SaraSkrabalak , working on materials' theory & design in our group, as well as synthesis of materials she predicts in the Skrabalak group:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

So here's some results on LK-99 as a tutorial case example in electron-lattice interactions. So here's my two main results on it. Just very isolated, S=1/2, Cu bands in an insulator. Nothing at the Fermi level in DFT+U. One can also think of these as color centers.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

In this video, I discuss chemical bonding concepts as relevant for the Peierls distortion, bonding/antibonding (antibonding orbitals destabilize materials), Bloch wavefunctions, supercells/band folding, low energy vs p-d models, Wannier functions and LCAO.

Chemical Bonding Concepts in Solids

Welcome! This video is meant to explain a few key concepts I've found useful: I discuss Peierls distortions, hydrogen molecules, why antibonding orbitals des...

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

5 months

This me!

Indiana University Chemistry Department

@IUBChemistry

5 months

A warm welcome to Prof. Alexandru Georgescu! For his independent career at IU Chemistry, Alex’s focus is on using computational and theoretical methods to understand and design the electronic properties of materials and molecules. #iubchemistry #welcome #georgescugroup

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

Some news, the first presentation at a conference from a student in the group! Emily, a junior undergraduate student, is presenting her experimental work here with @SaraSkrabalak and theory work with me, at PINDU (Purdue, Indiana, Notre Dame). 🎉🎉🎉

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

If you're interested in learning more about why beyond DFT methods are useful to understand correlated materials, things like ARPES in correlated metals (e.g. SrVO3) and multiplet states, I discuss this in my summer school talk (with timestamps):

PARADIM Summer School 2022: Computational Study of Superconducting...

This is my lecture at the PARADIM (Johns Hopkins & Cornell) Summer School 2022. I discuss topics like self-energies, quasiparticles & Hubbard bands, how to r...

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

4 months

Well, time to share this with my surface chemistry class.

Lars Schaaf

@lars__schaaf

4 months

The first time I used this model I was pretty breath taken. The coolest things: with just a few lines, **anyone** can now run decent atomic scale simulations. Try it out yourself! Details in 🧵 paper:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Since I sometimes (often) get asked how come I'm a prof in Chemistry when my degrees are in Physics, well, I just work on electrons and atoms and materials. The lines are somewhat arbitrary.

Margaret Harris

@DrMLHarris

8 months

The physics Nobel was about creating a better tool for studying chemistry. The chemistry Nobel was about synthesizing a material that lets you do some really interesting physics. Neat!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

I'll be teaching a Surface Chemistry class next spring, so I'm pretty excited to have students play with this. Computational tools are very useful for teaching, particularly when visual.

AI at Meta

@AIatMeta

10 months

Today we're releasing the Open Catalyst Demo to the public — this new service will allow researchers to accelerate work in material sciences by enabling them to simulate the reactivity of catalyst materials ~1000x faster than existing computational methods using AI. Demo ⬇️

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

9 months

@Andrew_S_Rosen It's nice to see that in the report, the solution for each issue is to set up another committee for that issue. That always solves all the problems.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

I've made a video introducing key concepts in the field of correlated electron materials, with topics ranging from Mott behavior, Jahn-Teller and Peierls distortions, spin frustration, and others! Please RT if you think it's useful:

Intro To Correlated Electron Physics

Thank you for watching this video. You can read more about my work here: https://www.alexbgeorgescu.com/ References mentioned throughout, some mine, some rev...

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

1 year

Georgescu group website is up :). Looks best on desktop.

Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

1 year

I am excited to share that I will be joining the Department of Chemistry at Indiana U Bloomington @IUBChemistry this August, as an Assistant Professor. We will focus on the computational and theoretical study of correlated electron materials.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

Nice. Theory can be pretty predictive at times.

Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

Honestly, based on this, I wouldn't be surprised if the material is transparent, and maybe has a color. It may be an interesting magnet, but the spins are so isolated, I don't know why it would be.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

For what it's worth, I'm preparing some stuff to help people understand a bit better the electronic structure (DFT, DFT+U) part, given the interest in some of these questions, and calculation details. Good way to set up my software at IU.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

4 months

First group pictures! Thank you Divine @kumahlab for taking them!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Reading up on the Jahn-Teller effect and realizing (once again) just how much cool stuff there is to know - and solve.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

I'm searching for a postdoc in computational/theoretical quantum materials. See job ad below. We'll do cool science on the prettiest campus in the US:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

Guess I need to get used to seeing this in my email. Just got used to seeing 'Dr. '

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

9 months

Photorealistic representation of an Assistant Professor starting their group.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

I only keep the quadratic term, everything is a harmonic oscillator until proven otherwise.

Physics Memes

@ThePhysicsMemes

7 months

Facts #school

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

Wonderful job Emily who gave her first talk at a major conference today at #apsmarch2024 presenting both theory w me and experiment w @SaraSkrabalak as a 3rd year undergraduate student in a regular APS session!

Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

If you're around #apsmarch2024 tomorrow morning, go see my 3rd yr undergraduate student Emily's work presenting both her theory AND experiment done with @SaraSkrabalak

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

To celebrate the end of the rotations, we had a little celebratory lunch. In the picture, from left to right: Alex, Rukshanthan, Varsha, Dewni and Jane. Thank you everybody for making this rotation season fun!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

I can't believe this is my walk to work now, on my way to @IUBChemistry

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

I feel very bad for the students and postdocs who wasted years of their early career on this.

Nidhi Subbaraman

@NidhiSubs

8 months

Scoop: Most of the team behind a big superconductivity paper from March have asked for the paper to be pulled, claiming that the lead researcher Ranga Dias misrepresented data

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Editor's Suggestion in @PhysRevMater , a puzzle on spin canting and rotations in a ternary nitride! The mix of spin rotations, canting, and coupling to structure (even though it's d5!), sp3 SiN4 bonding in a correlated material, made this a fun project.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Many students have a difficult time adapting to switching from taking classes to research - I had some as well. So I usually try and discuss a values based approach, which for me usually revolves around curiosity & kindness. A short thread. 1/n

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

Very happy to see my work (and sketches!) used and referenced in this very nice @NaturePhysics write up on its application to the light-induced metal insulator transition in Ca2RuO4: . You can see my original paper in the thread (1/2)

Through the slopes of a light-induced phase transition

Nature Physics - The integration of theory and experiment makes possible tracking the slow evolution of a photodoped Mott insulator to a distinct non-equilibrium metallic phase under the influence...

www.nature.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Tip: if you email me to ask for a Ph.D or postdoc position, maybe remember I'm a postdoc and can't actually hire you lol, why are you even emailing me?

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

4 months

Me coming to the student office asking if everything is going well.

Sophien Kamoun

@KamounLab

4 months

When the senior PI wants to hang out with the students

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

4 months

And exactly one year ago, I had the second day of my interview here at @IUBChemistry . Though tired, I was very happy about it, and shook hands with Herman B Wells like the freshmen do for good luck 😀

Indiana University

@IndianaUniv

4 months

Indiana University was established on this day in 1820. Happy birthday to us!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Many of us - especially in academia - have to deal with impostor syndrome and thoughts like 'I'll never be good enough' etc. So here's some thoughts on how I personally deal with it. 🧵 1/7

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

First time at a conference as a professor. #F23MRS

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

5 months

Not a lot of snow but still very pretty 😍❄️

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

Them: I think you should keep your penguin obsession away from your sci... Me: New group logo!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Do what matters, even when it's not the trendy thing to work on.

The Nobel Prize

@NobelPrize

8 months

“Ten years ago I was kicked out and forced to retire.” Our new medicine laureate Katalin Karikó ( @kkariko ) told us how much it means to be awarded the Nobel Prize after a scientific career that has been full of challenges. Ten years ago, Karikó was still doing all her

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

Weird/amusing things about being young (or young looking I guess, I'm 35) and going to the university gym: being referred to as 'dude' and 'bro' by students, and gym staff looking very confused when I asked for the combination for the faculty & staff locker room.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

9 months

Introducing incoming grad students to life as a materials theorist. Thank you @Nabojitkar for the picture.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

My Youtube channel reached 200 subscribers, thank you! This is where it all started:

Intro To Correlated Electron Physics

Thank you for watching this video. You can read more about my work here: https://www.alexbgeorgescu.com/ References mentioned throughout, some mine, some rev...

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

Tried a new Uighur place in town, Marco Polo. Amazing tea, eggplant salad, dumpling soup with numbing spice and lamb on rice.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

Flatbands are a new word but the topic is older; impurities in a semiconductor often lead to localized impurity levels we're quite familiar with (see pic of textbook). They can also be an interesting model to study Mott physics (including maybe superconductivity).

Condensed Matter Theory Center

@condensed_the

10 months

Since CMTC produced many papers on flatbands and on superconductivity (rarely together), we are delighted seeing flatbands of LK99 being discussed everywhere, this can only be good. In case, you are still confused, flatbands in the simplest terms imply 'very heavy electron mass'

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Happy to be chosen as an APS Career Mentoring Fellow, particularly as it's the first time one of my students had to write me a letter of support rather than my asking one of my mentors for one ! 🥳

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

9 months

Got our IU scarves today (with @TripletStateGuy and @GoicoecheaGroup )

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 months

Happy to help host my collaborator Raquel Queiroz @rpa_queiroz from @ColumbiaQuantum with our physics colleagues, and learn more about quantum geometry in materials! 🎉

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

4 months

We had a bit of snow on campus this morning.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

5 months

First time making Trinidadian roti parathas (buss up shut) in a while. Also some Trini curry chickpeas, Ethiopian red lentils & beef tibs.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

It was great hosting Tyrel McQueen from Johns Hopkins today at @IUBChemistry and learning more about his team's experimental efforts in quantum materials! @McQueenLab

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Short ribs at an Ethiopian place nearby.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Work at a place that makes you feel lucky to get to work there @IUBChemistry . Just a random picture on my way to the bus

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

Hi welcome to my workplace

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Random thought: Landau theories to describe first and second order transitions should be taught at the latest in an intro to solid state physics class, but honestly even earlier in undergrad.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

Me, explaining spin more or less every time. Gets more confusing at spin-orbit coupling.

A meme page to check every time MatLab crashes

@memecrashes

6 months

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

Congratulations to Julia Bauer, who worked with me on novel Kagome materials as an REU student during summer 2022, and just committed to the Yale Applied Physics PhD program!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Posted my Johns Hopkins/Cornell summer school lecture on my website as well w timestamps for the different chapters. More videos to come soon!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Papers that include DFT calculations should include a link to the final structures, almost like a figure. Not just for verifiability: it would make papers easier to read to just open the file and look at the 3D structure.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

🎉🎉

Indiana University Chemistry Department

@IUBChemistry

3 months

First group photos for the Alex Georgescu Lab! #iubchemistry #georgesculab

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Basically how I feel every time I say this to students who call me things like Professor/Dr Georgescu.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Made a nice treat for a friend tomorrow, and department picnic Sunday: sour cherry 🍒 sheet cake ( pandișpan cu vișine ). Always a crowd pleaser, always hard to find the sour cherries. 🍒

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

First time being a Ph.D committee member on a qualifying exam. Also first time taking notes on my cool new notebook.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

People ask me how is Bloomington so here's a story from this morning: I hop on the bus but the driver was outside and nobody inside (we're at the end of the line). She comes in and I assume she'll be like show me ticket/ID (I ride the bus free w IU ID, otherwise it's $1). 1/3

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

3 months

If you're around #apsmarch2024 tomorrow morning, go see my 3rd yr undergraduate student Emily's work presenting both her theory AND experiment done with @SaraSkrabalak

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

Nice Ethiopian food at Major Restaurant in Indianapolis. Thank you @SaraSkrabalak for the recommendation!

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

I explain some theoretical topics in correlated materials - including topics in high-temperature superconductivity - , in this video:

Intro To Correlated Electron Physics

Thank you for watching this video. You can read more about my work here: https://www.alexbgeorgescu.com/ References mentioned throughout, some mine, some rev...

www.youtube.com

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

I'm finalizing an intro video on correlated electron materials/transition metal oxides. I'm thinking: what are some interesting applications to mention other than microelectronics? I'm thinking electrochemistry, photocatalysis?

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Pani puri and carrot halwa topped with ice cream. Very nice snacks to start the day.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

And the Chemistry building & some surrounding area.

Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

I can't believe this is my walk to work now, on my way to @IUBChemistry

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

If you are a condensed matter physicist or materials scientist and never took an inorganic chemistry class, you will likely find this useful (like I did). If terms terms like Wannier functions, antibonding and p-d model are a bit confusing, you'll probably also find this useful.

Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

In this video, I discuss chemical bonding concepts as relevant for the Peierls distortion, bonding/antibonding (antibonding orbitals destabilize materials), Bloch wavefunctions, supercells/band folding, low energy vs p-d models, Wannier functions and LCAO.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Got Dave's hot chicken, Reaper heat. Had to sign a waiver to get it. Let's see if I finally met my match.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

I'll be presenting Wednesday afternoon at #F23MRS . A brief review on my work, some theory, some collaborative. I'll also be visiting the meet the faculty candidate posters as we're hiring across multiple departments here. I'm not on any committee so it'll just be informative.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

Great new Afghani restaurant opened in our neighborhood. Felt like being hosted by a family. Also all of this was $30 before tip.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

Our application portal is still open! Please apply and/or share with people who may be interested!

Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

Want to pursue a PhD studying materials, including quantum materials (superconductors, 2D magnets and others) & materials for energy applications, like photocatalysis and other things I post about here and on youtube? Our application portal is open:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

1 year

One of my coworkers gave me this yearly holiday 3D printed molecule electron isosurface: cinnamaldehyde, which gives cinnamon its smell and taste.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

After my interview earlier this year, I shook hands with Herman B Wells, who helped found the Kinsey Institute at IU (where the Kinsey scale is from), integrated the school, and helped make the campus you see today. I knew it would be a great community to join.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

11 months

One of the papers I'm proudest of is also one of the most simple - and it turns out useful for superconducting qubits and and lasers. We showed that the surface of sapphire is strongly piezoelectric:

Surface Piezoelectricity of (0001) Sapphire

The authors provide a first-principles analysis of and methodology for easily estimating the surface piezoelectric response of materials that are not piezoelectric in the bulk. This study shows that...

journals.aps.org

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

8 months

The leaves are changing.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

10 months

Me a few months ago: 'Pretty worried about not living in an apartment block anymore.' Me now: *checks for baby deer eating apples in the backyard every morning* 🥹🥹

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

I'll be giving a summer school zoom talk at @PARADIMResearch tomorrow at 10am Eastern on using DFT, DMFT, model calculations and machine learning to understand & discover correlated electron materials and superconductors. Hope to see some of you there !

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

You can now find my PARADIM summer school talk on youtube or on Cornell's video on demand. I cover things like self-energies, how to read a DMFT paper, Hubbard bands, attempts at making Ni and Co heterostructure superconductors, lattice modes in Cu ones.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

7 months

The way the color gradients on these trees align is very pretty, and quite striking in person.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

It was a fun time back at @FlatironCCQ , followed by a nice Ethiopian dinner.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 years

I'm not sure if this is my best poster, but it's definitely my most poster. So much stuff and I forgot to put my name on it.

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

2 months

Went to the student office and picked everybody who was there for lunch:

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Alexandru B Georgescu 🇺🇦🌻🇷🇴

@AlexandruBG

6 months

For one: it's great to solve problems and it's why I joined science. Not to 'get papers'. Second, when a student applies for jobs later on, it's easier to see: 'what can this person do? What's their perspective?'. That's all I had to say about this I guess. (4/5)

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