中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所1978-2010年知识产出  > 期刊论文
题名: Spin-charge gauge approach to the pseudogap phase of high-T-c cuprates: Theory versus experiments
作者: Marchetti, PA ;  De Leo, L ;  Orso, G ;  Su, ZB ;  Yu, L
刊名: PHYSICAL REVIEW B
出版日期: 2004
卷号: 69, 期号:2, 页码:-
关键词: HIGH-TEMPERATURE SUPERCONDUCTORS ;  NORMAL-STATE RESISTIVITY ;  ELECTRONIC SPECIFIC-HEAT ;  D-WAVE SUPERCONDUCTIVITY ;  QUANTUM CRITICAL-POINT ;  FERMI-LIQUID BEHAVIOR ;  VALENCE BOND STATE ;  AXIS RESISTIVITY ;  SINGLE-CRYSTALS ;  J MODEL
学科分类: Physics
通讯作者: Marchetti, PA , Ist Nazl Fis Nucl, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
部门归属: Ist Nazl Fis Nucl, Dipartimento Fis G Galilei, I-35131 Padua, Italy; SISSA, Int Sch Adv Studies, INFM, I-34014 Trieste, Italy; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
英文摘要: We consider as a clue to the understanding of the pseudogap phase in high-T-c superconductors the metal-insulator crossover in underdoped, nonsuperconducting cuprates as temperature decreases and a similar crossover in superconducting cuprates when a strong magnetic field suppresses superconductivity. A spin [SU(2)] and charge [U(1)] Chern-Simons gauge field theory, applied to the t-J model, is developed to describe this striking phenomenon. Two length scales have been derived from the theory: the antiferromagnetic correlation length xiapproximate to(deltaparallel toln deltaparallel to)(-1/2), where delta is the doping concentration, and the thermal de Broglie wavelength of the dissipative charge carriers lambda(T)approximate to(Tdelta/t)(-1/2), where T is the temperature, t the hopping integral. At low temperatures xiless than or equal tolambda(T), the antiferromagnetic short-range order dominates, and the charge carriers become localized, showing insulating behavior. On the contrary, at high temperatures xigreater than or similar tolambda(T), the dissipative motion of charge carriers prevails, exhibiting metallic conductivity. Furthermore, the gauge interaction induces binding of spinons (spin excitation) and holons (charge carrier) into "electron" resonance. This process introduces a new energy scale, the inverse recombination time, which turns out to be essential in the interpretation of the out-of-plane resistivity. The major steps in the theoretical derivation of these results, particularly the calculation of the current-current correlation function and the Green's function for the physical electron, are presented with some detail. The obtained theoretical results are systematically compared with the in-plane and out-of-plane resistivity data and the magnetoresistance data, as well as the nuclear magnetic relaxation data in the pseudogap regime. Very good agreement is obtained.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000188947300088
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14149
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Spin-charge gauge approach to the pseudogap phase of high-Tc cuprates Theory versus experiments.pdf(305KB)----开放获取View Download

Recommended Citation:
Marchetti, PA,De Leo, L,Orso, G,et al. Spin-charge gauge approach to the pseudogap phase of high-T-c cuprates: Theory versus experiments[J]. PHYSICAL REVIEW B,2004,69(2):-.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Marchetti, PA]'s Articles
 [De Leo, L]'s Articles
 [Orso, G]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Marchetti, PA]‘s Articles
 [De Leo, L]‘s Articles
 [Orso, G]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Spin-charge gauge approach to the pseudogap phase of high-Tc cuprates Theory versus experiments.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace