Deviation from the Kohler’s rule and Shubnikov–de Haas oscillations in type-II Weyl semimetal WTe2: High magnetic field study up to 56 T
| Autor: | Tatsuma D. Matsuda, Masashi Tokunaga, Shota Onishi, Ryuji Higashinaka, Yuji Aoki, Atsushi Miyake, Rajveer Jha |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Condensed matter physics Field (physics) Magnetoresistance Carrier scattering General Physics and Astronomy Weyl semimetal 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences lcsh:QC1-999 Magnetic field Residual resistivity Amplitude 0103 physical sciences 010306 general physics 0210 nano-technology Anisotropy lcsh:Physics |
| Zdroj: | AIP Advances, Vol 8, Iss 10, Pp 101330-101330-5 (2018) |
| ISSN: | 2158-3226 |
| Popis: | We have measured magnetoresistance of type-II Weyl semimetal WTe2 in high magnetic fields of B//c up to B = 56 T using a high quality single crystal with the residual resistivity ratio 1330. A Kohler plot demonstrates the existence of a deviation from the B2 dependence. Significant deviation from Kohler’s rule appears with increasing temperature, indicating wave-vector k dependent anisotropic carrier scattering, which develops with increasing temperature. The fast-Fourier-transform spectra of the observed large-amplitude Shubnikov–de Haas oscillations confirm the existence of four fundamental and one additional (cyclotron frequency of 255 T) peaks. The amplitude of the latter one increases anomalously with increasing field, confirming this oscillation being due to magnetic breakdown (or magnetic breakthrough) between the two cyclotron orbits of the adjacent hole pockets. |
| Databáze: | OpenAIRE |
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