7 papers
Nonlinear Tellegen limit
Abhinava Chatterjee, Nikhil Kalyanapuram
The Tellegen limit is the fundamental electromagnetic stability bound on magnetoelectric media. We show that nonlinear magnetoelectric coupling gives rise to a new Tellegen limit,…
Perfect Nonreciprocal Axion-polaritons
Abhinava Chatterjee, Chao-Xing Liu
Dynamical axion describes a massive axion quasiparticle that arises from fluctuations of the magnetic order parameter. These fluctuations couple to electromagnetic fields, forming…
Phonon circular birefringence and polarization-filter in Magnetic Topological Insulators
Abhinava Chatterjee, Chao-Xing Liu
The surface phonon Hall viscosity (PHV)-an acoustic analog of axion electrodynamics-emerges from the strain response of magnetic topological insulators and gives rise to novel acou…
Efficiently gate-tunable ferromagnetism in ferromagnetic semiconductor-Dirac semimetal p-n heterojunctions
Emma Steinebronn, Saurav Islam, Abhinava Chatterjee +15
We use molecular beam epitaxy to develop a gate tunable p-n heterojunction that interfaces a canonical Dirac semimetal, CdAs, and a ferromagnetic semiconductor, InM…
Surface Phonon Hall Viscosity Induced Phonon Chirality and Nonreciprocity in Magnetic Topological Insulator Films
Abhinava Chatterjee, Chao-Xing Liu
The surface half-quantum Hall effect, a hallmark consequence of axion electrodynamics, can be induced by gapping out the surface states of topological insulators through surface ma…
QMBench: A Research Level Benchmark for Quantum Materials Research
Yanzhen Wang, Yiyang Jiang, Diana Golovanova +10
We introduce QMBench, a comprehensive benchmark designed to evaluate the capability of large language model agents in quantum materials research. This specialized benchmark assesse…