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5 papers · 2 filters
Nuclear spin relaxation in n-GaAs: from insulating to metallic regime
M. Vladimirova, S. Cronenberger, D. Scalbert +7
Nuclear spin relaxation is studied in n-GaAs thick layers and microcavity samples with different electron densities. We reveal that both in metallic samples where electrons are fre…
Chiral Anomaly and Second Harmonic Generation in Weyl Semimetals
A. A. Zyuzin, A. Yu. Zyuzin
We study second harmonic generation in centrosymmetric Weyl semimetal with broken time reversal symmetry. We calculate electric current density at the double frequency of the propa…
Coulomb drag between helical Luttinger liquids
N. Kainaris, I. V. Gornyi, A. Levchenko +1
We theoretically study Coulomb drag between two helical edges with broken spin-rotational symmetry, such as would occur in two capacitively coupled quantum spin Hall insulators. Fo…
Quantum elasticity of graphene: Thermal expansion coefficient and specific heat
I. S. Burmistrov, I. V. Gornyi, V. Yu. Kachorovskii +2
We explore thermodynamics of a quantum membrane, with a particular application to suspended graphene membrane and with a particular focus on the thermal expansion coefficient. We s…
Melting of Wigner crystal in high-mobility -GaAs/AlGaAs heterostructures at filling factors : Acoustic studies
I. L. Drichko, I. Yu. Smirnov, A. V. Suslov +3
Using acoustic methods the complex high-frequency conductance of high-mobility -GaAs/AlGaAs heterostructures was determined in magnetic fields 1218~T. Based on the observed f…