6 papers
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…
Millimeter-Scale, Atomically Controlled 2D Topological Insulators Revealed by Multimodal Spectroscopy
Woojoo Lee, Qiang Gao, Yufei Zhao +20
Quantum spin Hall insulators, or synonymously known as 2D topological insulators, are crucial 2D systems hosting topologically protected edge states. The working temperature of thi…
Emergent Anomalous Hall Effect from Surface States in the Altermagnet MnTe Thin Films
Yufei Zhao, Saswata Mandal, Chao-Xing Liu +1
Transport measurements on thin films of the prototypical altermagnet MnTe have reported conflicting phenomena of anomalous Hall effects (AHE), including opposite signs and thicknes…
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…