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	Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets
	Gan, J. Y. ; Chen, Yan ; Zhang, F. C.
	2010-05-06 ; 2010-05-06
关键词	LAYERED ORGANIC SUPERCONDUCTORS T-J MODEL PENETRATION DEPTH CUPRATE SUPERCONDUCTORS C-13 NMR STATES CONDUCTOR LATTICE TEMPERATURE RELAXATION Physics, Condensed Matter
中文摘要	Motivated by the recent discovery of a low temperature spin liquid phase in layered organic compound kappa-(ET)(2)Cu-2(CN)(3) which becomes a superconductor under pressure, we examine the phase transition of Mott insulating and superconducting (SC) states in a Hubbard-Heisenberg model on an anisotropic triangular lattice. We use a renormalized mean field theory to study the Gutzwiller projected BCS wave functions. The half filled electron system is a Mott insulator at large onsite repulsion U, and is a superconductor at a moderate U. The symmetry of the SC state depends on the anisotropy, and is gapful with d(x2-y2)+id(xy) symmetry near the isotropic limit and is gapless with d(x2-y2) symmetry at small anisotropy ratio.
语种	英语 ; 英语
出版者	AMERICAN PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/14781]
专题	清华大学
推荐引用方式 GB/T 7714	Gan, J. Y.,Chen, Yan,Zhang, F. C.. Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets[J],2010, 2010.
APA	Gan, J. Y.,Chen, Yan,&Zhang, F. C..(2010).Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets..
MLA	Gan, J. Y.,et al."Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets".(2010).

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