Structural and Transport Properties of the Weyl Semimetal NbAs at High Pressure
ZHANG Jun1 , LIU Feng-Liang1,2 , DONG Jin-Kui1** , XU Yang1 , LI Na-Na2 , YANG Wen-Ge2** , LI Shi-Yan1,3**
1 State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 2004332 Center for High Pressure Science and Technology Advanced Research, Shanghai 2012033 Collaborative Innovation Center of Advanced Microstructures, Fudan University, Shanghai 200433
Abstract ：We perform a series of high-pressure synchrotron x-ray diffraction (XRD) and resistance measurements on the Weyl semimetal NbAs. The crystal structure remains stable up to 26 GPa according to the powder XRD data. The resistance of NbAs single crystal increases monotonically with pressure at low temperature. Up to 20 GPa, no superconducting transition is observed down to 0.3 K. These results show that the Weyl semimetal phase is robust in NbAs, and applying pressure may not be a good way to obtain a topological superconductor from Weyl semimetal NbAs.
收稿日期: 2015-06-04
出版日期: 2015-10-02
:
71.55.Ak
(Metals, semimetals, and alloys)
61.50.Ks
(Crystallographic aspects of phase transformations; pressure effects)
74.62.Fj
(Effects of pressure)
引用本文:
. [J]. 中国物理快报, 2015, 32(09): 97102-097102.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/32/9/097102
或
https://cpl.iphy.ac.cn/CN/Y2015/V32/I09/97102
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2015, Vol. 32 
