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题名: Spin-charge gauge approach to metal-insulator crossover and transport properties in high-T(c) cuprates
作者: Marchetti, P. A. ;  Su, Z. B. ;  Yu, L.
刊名: JOURNAL OF PHYSICS-CONDENSED MATTER
出版日期: 2007
卷号: 19, 期号:12, 页码:-
关键词: VALENCE-BOND STATE ;  HIGH-TEMPERATURE SUPERCONDUCTORS ;  MEAN FIELD-THEORY ;  J MODEL ;  AXIS RESISTIVITY ;  FRACTIONAL-STATISTICS ;  SINGLE-CRYSTALS ;  MOTT INSULATOR ;  HUBBARD-MODEL ;  THIN-FILMS
学科分类: Physics
通讯作者: Marchetti, PA , Univ Padua, Dipartimento Fis G Galilei, Ist Nazl Fis Nucl, I-35131 Padua, Italy
部门归属: Univ Padua, Dipartimento Fis G Galilei, Ist Nazl Fis Nucl, I-35131 Padua, Italy; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
英文摘要: The spin-charge gauge approach to the metal-insulator crossover (MIC) and other anomalous transport properties in high-T(c) cuprates is briefly reviewed. A U(1) field gauging the global charge symmetry and an SU(2) field gauging the global spin-rotational symmetry are introduced to study the two-dimensional t-J model in the limit t >> J. The MIC, as a clue to the understanding of the 'pseudogap' (PG) phase, is attributed to the competition between the shortrange antiferromagnetic order and dissipative motion of charge carriers coupled to the slave-particle gauge field. The composite particle formed by binding the charge carrier (holon) and spin excitation (spinon) via the slave-particle gauge field exhibits a number of peculiar properties, and the calculated results are in good agreement with experimental data for both PG and 'strange metal' phases. Connections to other gauge field approaches in studying the strong correlation problem are also briefly outlined.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5771
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Marchetti, P. A.,Su, Z. B.,Yu, L.. Spin-charge gauge approach to metal-insulator crossover and transport properties in high-T(c) cuprates[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2007,19(12):-.
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