| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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** |
1State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433
2Center for High Pressure Science and Technology Advanced Research, Shanghai 201203
3Collaborative Innovation Center of Advanced Microstructures, Fudan University, Shanghai 200433
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| Cite this article: |
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ZHANG Jun, LIU Feng-Liang, DONG Jin-Kui et al 2015 Chin. Phys. Lett. 32 097102 |
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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.
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Received: 04 June 2015
Published: 02 October 2015
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| PACS: |
71.55.Ak
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(Metals, semimetals, and alloys)
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61.50.Ks
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(Crystallographic aspects of phase transformations; pressure effects)
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74.62.Fj
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(Effects of pressure)
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