Magnetoresistance and quantum oscillations in the WTe2 semimetal
Pirozerski A. L. 1, Charnaya E. V. 1, Lee M. K. 2,3, Chang L.-J. 3, Naumov S. V. 4, Domozhirova A. N. 4, Marchenkov V. V. 4,5
1St. Petersburg State University, St. Petersburg, Russia
2MOST Instrument Center at NCKU, Tainan, Taiwan
3Department of Physics, National Cheng Kung University, Tainan, Taiwan
4M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
5Ural Federal University after the first President of Russia B.N. Yeltsin, Yekaterinburg, Russia
Email: e.charnaya@spbu.ru

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The discovery of extreme magnetoresistance (XMR) in non-magnetic materials attracted attention to the WTe2 semimetal. We have carried out studies of magnetoresistance in a tungsten ditelluride single crystal in the magnetic field range up to 14 T. Magnetoresistance increased with increasing field following a near quadratic law without saturation. The Shubnikov-de Haas oscillations were observed. Four fundamental frequencies were found in the oscillations spectrum, which correspond to two electron and two hole pockets caused by strong spin-orbit coupling. Keywords: WTe2 semimetal, magnetoresistance, Shubnikov-de Haas oscillations, oscillations spectrum.
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