期刊文献+

准一维强关联梯子型材料反常的输运性质

UNUSUAL TRANSPORT PROPERTY OF QUASI-ONE DIMENSIONAL LADDER MATERIALS
下载PDF
导出
摘要 在t J模型下 ,应用Fermion spin理论研究了准一维强关联梯子型材料的输运行为 .研究结果表明 ,这类材料中电子的带电自由度和自旋自由度相分离成为带电的holon和不带电的spinon ,而反常的输运性质主要是由holons的散射而决定 ,同时梯子型材料中 2条链之间的强的量子干涉作用可以导致输运性质偏离一维系统的输运行为 . Within the t J model, the unusual optical and transport properties of the quasi one dimensional ladder materials are studied based on the fermion spin theory. It is shown that the electron is decoupled as the holon and spinon, while the optical and transport properties are dominated by the holon scattering and quantum interference effect.
出处 《北京师范大学学报(自然科学版)》 CAS CSCD 北大核心 2003年第2期204-208,共5页 Journal of Beijing Normal University(Natural Science)
基金 国家自然科学基金资助项目 (10 12 5 4 15 10 0 74 0 0 7 90 10 30 2 4 ) 国家"九七三"计划资助项目
关键词 准一维强关联梯子型材料 输运性质 T-J模型 Fermion-spin理论 超导体 低温反常物理性质 strongly correlated ladder material t J model fermion spin theory
  • 相关文献

参考文献8

  • 1Dagotto E, Rice T M. Surprises on the way from one- to two-dimensional quantum magnets: the ladder materials[J]. Science, 1996, 271:618.
  • 2Kastner M A, Birgeneau R J, Shiran G, et al. Magnetic, transport, and optical properties of monolayer copper oxides[J]. Rev Mod Phys, 1998,70 : 897.
  • 3Dagotto E. Experiments on ladders reveal a complex interplay between a spin-gapped normal state and superconductivity[J]. Rep Prog Phys,1999, 62:1 525.
  • 4Osafune T, Motoyama N, Eisaki H, et al. Pseudogap and collective mode in the optical conductivity spectra of hole-doped ladders in Sr14-xCaxCu24O41 [J]. Phys Rev Lett, 1999, 82:1313.
  • 5Osafune T, Motoyama N, Eisaki H, et al. Optical study of the Srl4-xCaxCu24 O41 system: evidence for hole-doped Cu2O3 ladders[J]. Phys Rev Lett, 1997,78:1980.
  • 6Rice T M, Gopalan S, Sigrist M. Spin-ladders with spin gaps:a description of a class of cuprates[J].Europhys Lett,1993, 23:445.
  • 7Feng Shiping, Su Z B, Yu L. Fermion-spin transformation to implement the charge-spin separation[J].Phys Rev, 1994, B49:2368.
  • 8Qin Jihong, Song Yun, Feng Shiping, et al. Optical and transport properties in a doped two-leg ladder antiferromagnet[J]. Phys Rev, 2002, B65 : 155 117.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部