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Prediction of phonon-mediated superconductivity in hole-doped black phosphorus

文献类型：期刊论文

作者Feng, Yanqing1; Sun, Hongyi2,3,4; Sun JH(孙军辉)5; Lu ZB(鲁志斌)5; You, Yong1
刊名Journal of Physics: Condensed Matter
出版日期2018
卷号30期号:1页码:015601(1-6)
关键词Hole-doped Black Phosphorus Bcs Superconductivity Density Functional Calculations
ISSN号0953-8984
DOI10.1088/1361-648X/aa9a5f
英文摘要

We study the conventional electron–phonon mediated superconducting properties of hole-doped black phosphorus by density functional calculations and get quite a large electron–phonon coupling (EPC) constant λ ~ 1.0 with transition temperature T C ~ 10 K, which is comparable to MgB2 when holes are doped into the degenerate and nearly flat energy bands around the Fermi level. We predict that the softening of low-frequency $B_{3{\rm g}}^{1}$ optical mode and its phonon displacement, which breaks the lattice nonsymmorphic symmetry of gliding plane and lifts the band double degeneracy, lead to a large EPC. These factors are favorable for BCS superconductivity.

学科主题材料科学与物理化学
资助项目低维材料摩擦学研究组
语种英语
WOS记录号WOS:000423884100009
资助机构the National Key R&D Program of China (No. 2017YFB0702303);the National Natural Science Foundation of China (Grant No. 21373249);the Key Program of the Chinese Academy of Sciences (No. QYZDY-SSWJSC009);Guangdong Province Colleges and Universities Characteristic Innovation Natural Science Project (No. ZX-2017-001)
源URL[http://210.77.64.217/handle/362003/23699]  
专题兰州化学物理研究所_固体润滑国家重点实验室
通讯作者Feng, Yanqing
作者单位1.School of Applied Science and Civil Engineering, Beijing Institute of Technology, Zhuhai, Zhuhai 519085, People’s Republic of China
2.Institute for Quantum Science and Engineering and Department of Physics, South University of Science and Technology of China, Shenzhen 518055, People’s Republic of China
3.School of Physics, Southeast University, Nanjing 211189, People’s Republic of China
4.Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, People’s Republic of China
5.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China
推荐引用方式
GB/T 7714		 Feng, Yanqing,Sun, Hongyi,Sun JH,et al. Prediction of phonon-mediated superconductivity in hole-doped black phosphorus[J]. Journal of Physics: Condensed Matter,2018,30(1):015601(1-6).
APA Feng, Yanqing,Sun, Hongyi,Sun JH,Lu ZB,&You, Yong.(2018).Prediction of phonon-mediated superconductivity in hole-doped black phosphorus.Journal of Physics: Condensed Matter,30(1),015601(1-6).
MLA Feng, Yanqing,et al."Prediction of phonon-mediated superconductivity in hole-doped black phosphorus".Journal of Physics: Condensed Matter 30.1(2018):015601(1-6).

入库方式： OAI收割

来源：兰州化学物理研究所

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