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85 papers · 1 filter
Quantum geometric contribution to the diffusion constant
A. A. Burkov
We discuss the quantum geometric contribution to the diffusion constant and the DC conductivity in metals and semimetals with linear Dirac dispersion. We demonstrate that, for syst…
Cavity modification of magnetoplasmon mode through coupling with intersubband polaritons
Lucy L. Hale, Daniele De Bernardis, Stephan Lempereur +12
We investigate the coupling of a multi-mode metal-insulator-metal cavity to a two-dimensional electron gas (2DEG) in a quantum well in the presence of a strong magnetic field. The…
Chiral charge conservation and ballistic magnetotransport in a disordered Weyl semimetal
A. A. Burkov
We demonstrate that in an ideal Weyl semimetal, in which the Fermi energy coincides with the band-touching nodes, weak direct inter-nodal scattering is irrelevant and, as a result,…
Direct observation of distinct bulk and edge nonequilibrium spin accumulation in ultrathin MoTe
Fangchu Chen, Kamal Das, Bowen Yang +11
Low-symmetry two-dimensional (2D) topological materials such as MoTe host efficient charge-to-spin conversion (CSC) mechanisms that can be harnessed for novel electronic and sp…
Strong coupling of polaritons at room temperature in a GaAs/AlGaAs structure
Hassan Alnatah, Shuang Liang, Qiaochu Wan +7
We report direct measurement of the dispersion relation of polaritons in GaAs/AlGaAs microcavity structures at room temperature, which clearly shows that the polaritons are in the…
Disordered Weyl semimetal as an array of coupled Hubbard chains
Jinmin Yi, A. A. Burkov
We demonstrate that a disordered magnetic Weyl semimetal may be mapped onto a two-dimensional array of coupled replicated Hubbard chains, where the Hubbard is directly related…