Orbital driven two-dome superconducting phases in multiorbital superconductors

doi:10.1016/j.physleta.2020.127118

	Orbital driven two-dome superconducting phases in multiorbital superconductors
	Liu, Jing 1,2; Wang, Qing-Wei 3,4; Zou, Liang-Jian 1,2
刊名	PHYSICS LETTERS A
	2021-03-05
卷号	391
关键词	Unconventional superconductor Phase diagram Theory Orbital degeneracy
ISSN号	0375-9601
DOI	10.1016/j.physleta.2020.127118
通讯作者	Zou, Liang-Jian(zou@theory.issp.ac.cn)
英文摘要	We theoretically study the superconductivity in multiorbital superconductors based on a three-orbital tight-banding model. With appropriate values of the nearest-neighbor exchange J(1)(alpha beta) and the next-nearest-neighbor exchange J(2)(alpha beta), we find a two-dome structure in the T-c- n phase diagram: one dome in the doping range n < 3.9 where the superconducting (SC) state is mainly s(x2y2) component contributed by inter-orbital pairing, the other dome in the doping range 3.9 < n < 4.46 where the SC state is mainly s(x2y2)( )+ s(x2+y2) components contributed by intra-orbital pairing. We find that the competition between different orbital pairing leads to two-dome SC phase diagrams in multiorbital superconductors, and different matrix elements of J(1) and J(2) considerably affect the boundary of two SC domes. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11774350] ; National Natural Science Foundation of China[11474287] ; National Natural Science Foundation of China[11534010]
WOS关键词	ANOMALOUS X-DEPENDENCE ; IRON ; ORDER ; COMPETITION ; TRANSITION ; DIAGRAM ; TC
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000612184400005
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120264]
专题	中国科学院合肥物质科学研究院
通讯作者	Zou, Liang-Jian
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, POB 1129, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 3.ZheJiang Ocean Univ, Sch Math Phys & Informat Sci, Zhoushan 316022, Zhejiang, Peoples R China 4.ZheJiang Ocean Univ, Key Lab Oceanog Big Data Min & Applicat Zhejiang, Zhoushan 316022, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jing,Wang, Qing-Wei,Zou, Liang-Jian. Orbital driven two-dome superconducting phases in multiorbital superconductors[J]. PHYSICS LETTERS A,2021,391.
APA	Liu, Jing,Wang, Qing-Wei,&Zou, Liang-Jian.(2021).Orbital driven two-dome superconducting phases in multiorbital superconductors.PHYSICS LETTERS A,391.
MLA	Liu, Jing,et al."Orbital driven two-dome superconducting phases in multiorbital superconductors".PHYSICS LETTERS A 391(2021).