| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Synchrotron X-Ray Diffraction Studies on the New Generation Ferromagnetic Semiconductor Li(Zn,Mn)As under High Pressure |
| Fei Sun1,2, Cong Xu3, Shuang Yu1,2, Bi-Juan Chen1,2, Guo-Qiang Zhao1,2, Zheng Deng1**, Wen-Ge Yang3,4**, Chang-Qing Jin1,2,5** |
1Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049
3Center for High Pressure Science and Technology Advanced Research, Shanghai 201203
4High Pressure Synergetic Consortium, Geophysical Laboratory, Carnegie Institution of Washington, Argonne 60439, USA
5Collaborative Innovation Center of Quantum Matter, Beijing 100871
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Fei Sun, Cong Xu, Shuang Yu et al 2017 Chin. Phys. Lett. 34 067501 |
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Abstract The pressure effect on the crystalline structure of the I–II–V semiconductor Li(Zn,Mn)As ferromagnet is studied using in situ high-pressure x-ray diffraction and diamond anvil cell techniques. A phase transition starting at $\sim$11.6 GPa is found. The space group of the high-pressure new phase is proposed as $Pmca$. Fitting with the Birch–Murnaghan equation of state, the bulk modulus $B_{0}$ and its pressure derivative $B'_0$ of the ambient pressure structure with space group of $F\bar{4}3m$ are $B_{0}=75.4$ GPa and $B'_0=4.3$, respectively.
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Received: 14 March 2017
Published: 23 May 2017
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| Fund: Supported by the National Natural Science Foundation and the Ministry of Science and Technology of China, the National Natural Science Foundation of China under Grant No U1530402, the U.S. Department of Energy of Office of Science under Grant No DE-AC02-06CH11357, the DOE-NNSA under Grant No DE-NA0001974, the DOE-BES under Grant No DE-FG02-99ER45775, and the Instrumentation Funding of National Science Foundation. |
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