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Antiferromagnetic metal phase in an electron-doped rare-earth nickelate
Qi Song, Spencer Doyle, Grace A. Pan +28
Long viewed as passive elements, antiferromagnetic materials have emerged as promising candidates for spintronic devices due to their insensitivity to external fields and potential…
Photocurrent as a multi-physics diagnostic of quantum materials
Qiong Ma, Roshan Krishna Kumar, Su-Yang Xu +2
The photoexcitation life-cycle from incident photon (and creation of photoexcited electron hole pair) to ultimate extraction of electrical current is a complex multi-physics proces…
Theory of optical axion electrodynamics and application to the Kerr effect in topological antiferromagnets
Junyeong Ahn, Su-Yang Xu, Ashvin Vishwanath
Emergent axion electrodynamics in magneto-electric media is expected to provide novel ways to detect and control material properties with electromagnetic fields. However, despite b…
Observation of Fermi arcs and Weyl nodes in a non-centrosymmetric magnetic Weyl semimetal
Anup Pradhan Sakhya, Cheng-Yi Huang, Gyanendra Dhakal +15
Weyl semimetal (WSM), a novel state of quantum matter, hosts Weyl fermions as emergent quasiparticles resulting from the breaking of either inversion or time-reversal symmetry. Mag…
Relativistic horizon of interacting Weyl fermions in condensed matter systems
Wei-Chi Chiu, Guoqing Chang, Gennevieve Macam +12
The intersections of topology, geometry and strong correlations offer many opportunities for exotic quantum phases to emerge in condensed matter systems. Weyl fermions, in particul…