Naslov
Large linear magnetoresistance in the Dirac semimetal TlBiSSe

Autori
Novak, Mario ; Sasaki, Satoshi ; Segawa, Kouji ; Ando, Yoichi

Izvornik
Physical Review B (1098-0121) 91 (2015), 4; 041203, 5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Magnetoresitance

Sažetak
The mixed-chalcogenide compound TlBiSSe realizes a three-dimensional (3D) Dirac semimetal state. In clean, low-carrier-density single crystals of this material, we found Shubnikov–de Haas oscillations to signify its 3D Dirac nature. Moreover, we observed very large linear magnetoresistance (MR) approaching 10 000% in 14 T at 1.8 K, which diminishes rapidly above 30 K. Our analysis of the magnetotransport data points to the possibility that the linear MR is fundamentally governed by the Hall field ; although such a situation has been predicted for highly inhomogeneous systems, inhomogeneity does not seem to play an important role in TlBiSSe. Hence, the mechanism of large linear MR is an intriguing open question in a clean 3D Dirac system.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA