Giant linear magneto-resistance in nonmagnetic PtBi2

We synthesized nonmagnetic PtBi2 single crystals and observed a giant linear magneto-resistance (MR) up to 684% under a magnetic field μ 0 H  = 15 T at T = 2 K. The linear MR decreases with increasing temperature, but it is still as large as 61% under μ 0 H of 15 T at room temperature. Such a giant...

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Bibliographic Details
Published in:Applied physics letters 2016-06, Vol.108 (25)
Main Authors: Yang, Xiaojun, Bai, Hua, Wang, Zhen, Li, Yupeng, Chen, Qian, Chen, Jian, Li, Yuke, Feng, Chunmu, Zheng, Yi, Xu, Zhu-an
Format: Article
Language:English
Subjects:
Applied physics
Crystals
Electron mobility
Hall effect
Single crystals
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Summary:We synthesized nonmagnetic PtBi2 single crystals and observed a giant linear magneto-resistance (MR) up to 684% under a magnetic field μ 0 H  = 15 T at T = 2 K. The linear MR decreases with increasing temperature, but it is still as large as 61% under μ 0 H of 15 T at room temperature. Such a giant linear MR is unlikely to be described by the quantum model as the quantum condition is not satisfied. Instead, we found that the slope of MR scales with the Hall mobility, and it can be well explained by a classical disorder model.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4954272