The Singularity Paramagnetic Peak of Bi0.3Sb1.7Te3 with p-type Surface State

Autor: Shiu-Ming Huang, Pin-Cing Wang, Pin-Cyuan Chen, Jai-Long Hong, Cheng-Maw Cheng, Hao-Lun Jian, You-Jhih Yan, Shih-Hsun Yu, Mitch M. C. Chou
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Nanoscale Research Letters, Vol 17, Iss 1, Pp 1-6 (2022)
Druh dokumentu: article
ISSN: 1556-276X
DOI: 10.1186/s11671-021-03650-8
Popis: Abstract The magnetization measurement was performed in the Bi0.3Sb1.7Te3 single crystal. The magnetic susceptibility revealed a paramagnetic peak independent of the experimental temperature variation. It is speculated to be originated from the free-aligned spin texture at the Dirac point. The ARPES reveals that the Fermi level lies below the Dirac point. The Fermi wavevector extracted from the de Haas–van Alphen oscillation is consistent with the energy dispersion in the ARPES. Our experimental results support that the observed paramagnetic peak in the susceptibility curve does not originate from the free-aligned spin texture at the Dirac point.
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