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

doi:10.1088/1361-648X/aa9a5f

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Prediction of phonon-mediated superconductivity in hole-doped black phosphorus
	Feng, Yanqing 1; Sun, Hongyi 2,3,4; Sun JH(孙军辉)5; Lu ZB(鲁志斌)5 ; You, Yong 1
刊名	Journal of Physics: Condensed Matter
	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
DOI	10.1088/1361-648X/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)
内容类型	期刊论文
源URL	[http://ir.licp.ac.cn/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).