Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2
	Zhou, S
刊名	PHYSICAL REVIEW B
	2014
卷号	90 期号:16 页码:165135
关键词	CORRELATED FERMI SYSTEMS SPIN LIQUIDS SUPERCONDUCTIVITY COO2
ISSN号	1098-0121
通讯作者	Jiang, K (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
英文摘要	We show that geometric frustration and strong correlation in the triangular-lattice Hubbard model lead a rich phase structure of root 3 x root 3 spin-charge textured electronic states over a wide region of electron doping 0 <= x <= 0.40. In addition to the 120 degrees Neel ordered insulator at half filling, we found a spin charge ordered insulator at x = 1/3 with collinear antiferromagnetic (AF) order on the underlying unfrustrated honeycomb lattice. Separating the two insulating phases is a Lifshitz transition between a noncollinear AF ordered metal and one with coexisting charge order. We obtain the phase diagram and the evolution of the Fermi surface (FS). Remarkably, the correlated ground states near x = 1/3 emerge as doping the "1/3 AF insulator" by excess carriers, leading to electron and hole FS pockets with important implications for the cobaltate superconducting state.
学科主题	Physics
收录类别	SCI
资助信息	DOE [DE-FG02-99ER45747]; NSF [DMR-0704545]
原文出处	http://dx.doi.org/10.1103/PhysRevB.90.165135
语种	英语
WOS记录号	WOS:000345631700006
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15606]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Zhou, S. Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2[J]. PHYSICAL REVIEW B,2014,90(16):165135.
APA	Zhou, S.(2014).Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2.PHYSICAL REVIEW B,90(16),165135.
MLA	Zhou, S."Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2".PHYSICAL REVIEW B 90.16(2014):165135.