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题名: SCHWINGER-BOSON STUDIES OF THE T-J MODEL - A SELF-CONSISTENT SYSTEMATIC EXPANSION
作者: LI, YM ;  SHENG, DN ;  SU, ZB ;  YU, L
刊名: PHYSICAL REVIEW B
出版日期: 1992
卷号: 45, 期号:10, 页码:5428-5437
关键词: MEAN-FIELD-THEORY ;  VALENCE-BOND STATE ;  HIGH-TEMPERATURE SUPERCONDUCTORS ;  ANTIFERROMAGNETIC HEISENBERG-MODEL ;  QUANTUM ANTIFERROMAGNET ;  SQUARE-LATTICE ;  HUBBARD-MODEL ;  SPIRAL PHASES ;  HOLE MOTION ;  DYNAMICS
学科分类: Physics
通讯作者: LI, YM , INT CTR THEORET PHYS,POB 586,I-34100 TRIESTE,ITALY.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; UNIV HOUSTON,TEXAS CTR SUPERCONDUCT,HOUSTON,TX 77204; UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND
英文摘要: A self-consistent systematic expansion is developed for the t-J model in the Schwinger-boson approach. We treat the fermion part with use of a systematic loop expansion technique and study the effects of magnetic fluctuations on the normal-state properties. It is found that the hole motion is strongly renormalized and incoherent bands are produced by magnetic fluctuations. The conductivity and the electron density of states are calculated and shown to be anomalous. The antiferromagnetic nature of fluctuations is found to be essential for these unusual properties. The relevance of the obtained results to oxide superconductors is also discussed.
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/311006/12182
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:
LI, YM,SHENG, DN,SU, ZB,et al. SCHWINGER-BOSON STUDIES OF THE T-J MODEL - A SELF-CONSISTENT SYSTEMATIC EXPANSION[J]. PHYSICAL REVIEW B,1992,45(10):5428-5437.
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