Band splitting in Cd3As2 measured by magnetotransport
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DESRAT, Wilfried; KRISHTOPENKO, Sergey S.; PIOT, Benjamin A.; ORLITA, Milan; CONSÉJO, Christophe; RUFFENACH, Sandra; KNAP, Wojciech ; NATEPROV, Alexandr; ARUSHANOV, Ernest; TEPPE, Fréd́eric. Band splitting in Cd3As2 measured by magnetotransport. In: Physical Review B. 2018, nr. 24(97), p. 0. ISSN -.
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Physical Review B
Numărul 24(97) / 2018 / ISSN - /ISSNe 0163-1829

Band splitting in Cd3As2 measured by magnetotransport

DOI: 10.1103/PhysRevB.97.245203
Pag. 0-0

Desrat Wilfried1, Krishtopenko Sergey S.12, Piot Benjamin A.3, Orlita Milan3, Conséjo Christophe1, Ruffenach Sandra1, Knap Wojciech , Nateprov Alexandr4, Arushanov Ernest4, Teppe Fréd́eric1
1 University of Montpellier,
2 Institute for Physics of Microstructures RAS,
4 Institute of Applied Physics, Academy of Sciences of Moldova
Disponibil în IBN: 9 august 2018


Magnetotransport measurements have been performed on (112)-oriented bulk Cd3As2 samples with in situ rotation at low temperature. The frequency analysis of the Shubnikov-de Haas oscillations reveals two weakly separated frequencies arising from two Fermi ellipsoids. The angle dependence of these frequencies is fitted by an analytical expression that we derived for any magnetic field orientation. It is based on an 8×8 k·p model which includes the spin-orbit coupling, the crystal field splitting due to tetragonal distortion, and the additional band splitting occurring in noncentrosymmetric crystals. This band splitting is evaluated to a finite value of 30 meV, demonstrating the absence of inversion symmetry in our Cd3As2 crystal.