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Spin-charge gauge approach to metal-insulator crossover and transport properties in high-T(c) cuprates
Marchetti, P. A.; Su, Z. B.; Yu, L.; Marchetti, PA , Univ Padua, Dipartimento Fis G Galilei, Ist Nazl Fis Nucl, I-35131 Padua, Italy
2007
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN0953-8984
卷号19期号:12页码:-
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.
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
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
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5771
专题理论物理所SCI论文
通讯作者Marchetti, PA , Univ Padua, Dipartimento Fis G Galilei, Ist Nazl Fis Nucl, I-35131 Padua, Italy
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Marchetti, P. A.,Su, Z. B.,Yu, L.,et al. 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):-.
APA Marchetti, P. A.,Su, Z. B.,Yu, L.,&Marchetti, PA , Univ Padua, Dipartimento Fis G Galilei, Ist Nazl Fis Nucl, I-35131 Padua, Italy.(2007).Spin-charge gauge approach to metal-insulator crossover and transport properties in high-T(c) cuprates.JOURNAL OF PHYSICS-CONDENSED MATTER,19(12),-.
MLA Marchetti, P. A.,et al."Spin-charge gauge approach to metal-insulator crossover and transport properties in high-T(c) cuprates".JOURNAL OF PHYSICS-CONDENSED MATTER 19.12(2007):-.
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