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Alexandru B. Georgescu

@alexandrubg.bsky.social

160 followers 180 following 74 posts

Asst. Professor: Indiana University - Bloomington https://bio.site/AlexandruBGeorgescu Theory of Materials & random birdposting Physics PhD-Mat Sci postdoc-Chem Prof @ Indiana University Opinions mine

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Alexandru B. Georgescu @alexandrubg.bsky.social · Dec 18

Our group in IU news! news.iu.edu/it/live/news...

IU’s Georgescu Group harnesses advanced computing resources to transform materials science

The Georgescu group is attempting groundbreaking materials research utilizing advanced computing, quantum physics, and chemistry.

news.iu.edu

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Alexandru B. Georgescu @alexandrubg.bsky.social · 2d

🎉 Congrats to Varsha Kumari & Julia Bauer on our paper, “Molecular Orbital Symmetry-Driven Trimer Formation in Kagome Correlated Electron Materials,” accepted in RSC Materials Chemistry C! 👏
pubs.rsc.org/en/content/a...
#MaterialsScience #QuantumMaterials #Chemistry

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Alexandru B. Georgescu @alexandrubg.bsky.social · 3d

Thank you!!

Alexandru B. Georgescu @alexandrubg.bsky.social · 3d

🎉 Honored to receive the 2025 Oxide Electronics Prize for Excellence in Research at #iWOE in Banff, Canada!

Grateful to my mentors, mentees & collaborators. This recognition reflects years of shared work on correlated materials & superlattices.

Thanks to @jenf.bsky.social for the pics!

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Alexandru B. Georgescu @alexandrubg.bsky.social · 25d

We are happy to welcome Dr Mai Nguyen as a postdoctoral scholar into our group 🎉 ! She comes to us from UT Austin, and brings a wealth of expertise in electronic structure methods, including for high entropy alloy nanoparticles, battery materials, ionic transport and more!

Alexandru B. Georgescu @alexandrubg.bsky.social · Jul 24

New group picture.

Alexandru B. Georgescu @alexandrubg.bsky.social · Jul 19

We are searching for a new postdoc to join us. Plane wave DFT plus teach us something new (battery materials? Correlated electrons? Nanoparticles?) www.higheredjobs.com/faculty/deta...

Postdoctoral Fellow - Georgescu Lab - HigherEdJobs

Jobs in higher education. Faculty and administrative positions at colleges and universities. Updated daily. Free to job seekers.

www.higheredjobs.com

Alexandru B. Georgescu @alexandrubg.bsky.social · Jun 30

Awesome!

Reposted by Alexandru B. Georgescu

Alexandru B. Georgescu @alexandrubg.bsky.social · Mar 20

In work led by undergraduate student Emily Ward, we show how to build Wannier functions that allow visualization and interpretation of lone pairs in a solid, as well as complex bonding interactions in metal oxyhalides. iopscience.iop.org/article/10.1...
Image: a lone pair in BiOCl.

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Alexandru B. Georgescu @alexandrubg.bsky.social · Jun 29

My video on correlated electron materiasl has reached nearly 4K views! Glad so many people found it useful: www.youtube.com/watch?v=sp_f...

Intro To Correlated Electron Physics

YouTube video by Alexandru B Georgescu

www.youtube.com

Alexandru B. Georgescu @alexandrubg.bsky.social · Jun 25

Many thanks to Bipasa Samanta, the postdoc in our group, who performed the calculations and taught me about the connection between bond angles in perovskites and conjugation in organic molecules, and to Ricardo for inviting us to this collaboration.

Ricardo Javier Vázquez @tripletstatesguy.bsky.social · Jun 25

Do you want to know how to develop water-soluble qubits operable in biologically relevant media? Look no further! 🔥

Thanks to @alexandrubg.bsky.social and Aliaksandra Lisouskaya (from ND) for their contributions to this manuscript.

🔗: chemrxiv.org/engage/chemr...

A Conjugated Oligoelectrolyte Exhibiting Room Temperature Spin-Correlated Radical Pair Character for Biological Sensing

We report a water-soluble conjugated oligoelectrolyte (COE), Quantum-COE, exhibiting photogenerated spin-correlated radical pair (SCRP) behavior sensitive to the electric field of DNA, but not to that...

chemrxiv.org

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Alexandru B. Georgescu @alexandrubg.bsky.social · Jun 16

New work with my postdoc Bipasa Samanta on superconducting nickelates. After showing a remarkably strong correlation between in-plane Ni-O-Ni bond angles and Tc in La3Ni2O7, we investigate the effects of other factors (strain, correlations, layer number) on the likely Tc. arxiv.org/abs/2506.11427

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Alexandru B. Georgescu @alexandrubg.bsky.social · Jun 10

We congratulate Varsha Kumari for winning a teaching award. She did a wonderful job teaching with me Intro to physical chemistry and the Surface Chemistry class. In one evaluation, a student answered the question 'How can she improve?' by saying 'Nothing. She's doing amazing'.

Alexandru B. Georgescu @alexandrubg.bsky.social · May 31

Awesome job Varsha Kumari and Bipasa Samanta presenting your work with a talk on trimer formation in Kagome materials and a poster on superconducting nickelates at the Midwest theoretical chemistry conference in Detroit!

Alexandru B. Georgescu @alexandrubg.bsky.social · May 30

🎉 Congrats to the MRS Student Chapter at Indiana University
MRS at IU especially 2024–25 President @michaelakloveless.bsky.social , for earning a mini-grant for Bringing SMILES! They'll 3D print glowing toys & teach photoluminescence at Science Fest this fall! 💡🧸 #SciComm #MRS

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Alexandru B. Georgescu @alexandrubg.bsky.social · May 21

New work led by our excellent PhD student Varsha Kumari (with early contributions from Julia Bauer, now at Yale): we show that triangular cluster formation in Kagome multiferroics is driven by trimer orbital symmetry & intermediate correlation strength. arXiv: arxiv.org/abs/2505.13659

Alexandru B. Georgescu @alexandrubg.bsky.social · May 12

Happy to have contributed to this complex collaborative work - now in PRX - showing that infinite layer nickelate superconductors may be more different from cuprates than we thought: they may be superconducting even in the absence of doping: journals.aps.org/prx/abstract...

Superconductivity in the Parent Infinite-Layer Nickelate ${\mathrm{NdNiO}}_{2}$

Undoped NdNiO${}_{2}$ exhibits superconductivity up to 11 K, challenging the assumption that doping is essential in layered nickelate superconductors.

journals.aps.org

Alexandru B. Georgescu @alexandrubg.bsky.social · May 10

Congratulations to our student Emily Ward, who graduated with the highest award from the department, and pursued both theory and experiment as an undergraduate student. Her curiosity, drive, and kindness will be missed. We wish her good luck during her Phd at Princeton!

Alexandru B. Georgescu @alexandrubg.bsky.social · May 3

Last day of volunteering at IU Care Week. It was maybe as helpful for me as it was for the students: I could feel helpful without handing out work/assignments/grades. Just bagels and cream cheese, no added pressure or stress on anybody. And if you know me you know I love feeding people 😬😂.

Alexandru B. Georgescu @alexandrubg.bsky.social · May 1

Lived my dream of running a food cart at IU Care Week, serving students breakfast. Downside: my dream is not for me. My wrists are weak and hands are shaky.

Alexandru B. Georgescu @alexandrubg.bsky.social · Apr 30

My PhD student Rajbanul Akhond brought me this amazing Naga pickle. Delicious. Works on everything.

Alexandru B. Georgescu @alexandrubg.bsky.social · Apr 29

Thank you, some students in the department were very happy (and surprised) to see me. Worth it.

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Alexandru B. Georgescu @alexandrubg.bsky.social · Apr 29

Helped out at IU Care Week for two hours today, serving coffee, tea, bagels and snacks to students during their last week of class.

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Alexandru B. Georgescu @alexandrubg.bsky.social · Apr 25

Last year some finches built their next close to my feeders, on top of a wall. This week the old nest fell on the ground. What I didn't see last year was that the finches also used the cotton I left them for the nest! It looks like it must have been pretty comfortable.

Alexandru B. Georgescu @alexandrubg.bsky.social · Apr 19

This is my 'Ph.D Defense and Qualifying Exam Questions' notebook. I write down all my scary intimidating theorist questions on it as part of a student's Ph.D committee. Questions as scary as the monster drawn on it. 😤

Alexandru B. Georgescu @alexandrubg.bsky.social · Apr 9

In work now in ACS Nano, we showed how magnetic order propagates in a complex system: double perovskite superlattices! Amazing experimental work by Jonathan Spring and Marta Gibert who invited me to work on this; I just wrote some scripts in Matlab: pubs.acs.org/doi/10.1021/...

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