ITP OpenIR  > 理论物理所2014年知识产出
Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2
Jiang, K; Zhou, S; Wang, ZQ; Jiang, K (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
2014
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号90期号:16页码:165135
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.
部门归属[Jiang, Kun ; Wang, Ziqiang] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA ; [Zhou, Sen] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
关键词Correlated Fermi Systems Spin Liquids Superconductivity Coo2
学科领域Physics
资助者DOE [DE-FG02-99ER45747]; NSF [DMR-0704545] ; DOE [DE-FG02-99ER45747]; NSF [DMR-0704545] ; DOE [DE-FG02-99ER45747]; NSF [DMR-0704545] ; DOE [DE-FG02-99ER45747]; NSF [DMR-0704545]
DOI10.1103/PhysRevB.90.165135
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收录类别SCI
语种英语
资助者DOE [DE-FG02-99ER45747]; NSF [DMR-0704545] ; DOE [DE-FG02-99ER45747]; NSF [DMR-0704545] ; DOE [DE-FG02-99ER45747]; NSF [DMR-0704545] ; DOE [DE-FG02-99ER45747]; NSF [DMR-0704545]
WOS记录号WOS:000345631700006
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15606
专题理论物理所2014年知识产出
通讯作者Jiang, K (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
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Jiang, K,Zhou, S,Wang, ZQ,et al. Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2[J]. PHYSICAL REVIEW B,2014,90(16):165135.
APA Jiang, K,Zhou, S,Wang, ZQ,&Jiang, K .(2014).Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2.PHYSICAL REVIEW B,90(16),165135.
MLA Jiang, K,et al."Textured electronic states of the triangular-lattice Hubbard model and NaxCoO2".PHYSICAL REVIEW B 90.16(2014):165135.
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