Large magnetoresistance and Fermi surface study of Sb2Se2Te single crystal
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Optical Materials and Technology
- Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab.
- Univ. of Houston, Houston, TX (United States). Texas Center for Superconductivity (TCSUH) and Dept. of Physics
- Univ. of Houston, Houston, TX (United States). Texas Center for Superconductivity (TCSUH) and Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Here, we have studied the magnetotransport properties of a Sb2Se2Te single crystal. Magnetoresistance (MR) is maximum when the magnetic field is perpendicular to the sample surface and reaches a value of 1100% at B = 31 T with no sign of saturation. MR shows Shubnikov de Haas (SdH) oscillations above B = 15 T. The frequency spectrum of SdH oscillations consists of three distinct peaks at α = 32 T, β = 80 T, and γ = 117 T indicating the presence of three Fermi surface pockets. Among these frequencies, β is the prominent peak in the frequency spectrum of SdH oscillations measured at different tilt angles of the sample with respect to the magnetic field. From the angle dependence β and Berry phase calculations, we have confirmed the trivial topology of the β-pocket. The cyclotron masses of charge carriers, obtained by using the Lifshitz–Kosevich formula, are found to be m$$*\atop{β}$$= 0.16mo and m$$*\atop{γ}$$= 0.63mo for the β and γ bands, respectively. The Large MR of Sb2Se2Te is suitable for utilization in electronic instruments such as computer hard discs, high field magnetic sensors, and memory devices.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; US Air Force Office of Scientific Research (AFOSR); T. L. L. Temple Foundation; Bulgaria National Science Fund (BNSF); National Science Foundation (NSF)
- Grant/Contract Number:
- AC07-05ID14517; FNI-T-02/26; DMR-1157490
- OSTI ID:
- 1402685
- Report Number(s):
- INL/JOU-17-43482
- Journal Information:
- Journal of Applied Physics, Vol. 122, Issue 12; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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