A model for the doped copper oxide compounds

被引：1

作者：

Alonso, JL ^{[1
]}

Boucaud, P

Martin-Mayor, V

van der Sijs, AJ

机构：

[1] Univ Zaragoza, Dept Fis Teor, E-50009 Zaragoza, Spain

[2] Univ Paris 11, LPTHE, F-91405 Orsay, France

[3] Univ Complutense Madrid, Dept Fis Teor 1, E-28040 Madrid, Spain

[4] ETH Zentrum, Swiss Ctr Sci Comp, CH-8092 Zurich, Switzerland

来源：

EUROPHYSICS LETTERS | 1998年 / 42卷 / 05期

关键词：

D O I：

10.1209/epl/i1998-00285-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a relativistic spin-fermion model for the cuprates, in which both the charge and spin degrees of freedom are treated dynamically. The spin-charge coupling parameter is associated with the doping fraction. The model is able to account for the various phases of the cuprates and their properties, not only at low and intermediate doping but also for (highly) over-doped compounds. In particular, we acquire a qualitative understanding of high-T-c superconductivity through Bose-Einstein condensation of bound charge pairs. The mechanism that binds these pairs does not require a Fermi sea.

引用

页码：541 / 546

页数：6

共 28 条

[1] PHASE-DIAGRAM OF AN SU(2)XSU(2) SCALAR-FERMION MODEL WITH MASSLESS DECOUPLED DOUBLERS [J].

ALONSO, JL ;

LESMES, F ;

RIVAS, E ;

BOUCAUD, P .

PHYSICS LETTERS B, 1994, 329 (01) :75-80

[2] A class of chiral fermion models (vol 457, pg 175, 1995) [J].

Alonso, JL ;

Boucaud, P ;

Lesmes, F ;

vanderSijs, AJ .

NUCLEAR PHYSICS B, 1996, 472 (03) :738-738

[3] A class of chiral fermion models [J].

Alonso, JL ;

Boucaud, P ;

Lesmes, F ;

vanderSijs, AJ .

NUCLEAR PHYSICS B, 1995, 457 (1-2) :175-201

[4]

BEDNORZ JG, 1986, Z PHYS B, V64, P184

[5] ANTIFERROMAGNETIC SPIN CORRELATIONS IN INSULATING, METALLIC, AND SUPERCONDUCTING LA2-XSRXCUO4 [J].

BIRGENEAU, RJ ;

GABBE, DR ;

JENSSEN, HP ;

KASTNER, MA ;

PICONE, PJ ;

THURSTON, TR ;

SHIRANE, G ;

ENDOH, Y ;

SATO, M ;

YAMADA, K ;

HIDAKA, Y ;

ODA, M ;

ENOMOTO, Y ;

SUZUKI, M ;

MURAKAMI, T .

PHYSICAL REVIEW B, 1988, 38 (10) :6614-6623

[6] PHASE-DIAGRAM OF A LATTICE SU(2) X SU(2) SCALAR-FERMION MODEL WITH NAIVE AND WILSON FERMIONS [J].

BOCK, W ;

DE, AK ;

JANSEN, K ;

JERSAK, J ;

NEUHAUS, T ;

SMIT, J .

NUCLEAR PHYSICS B, 1990, 344 (01) :207-237

[7] ANTIFERROMAGNETISM AND SUPERCONDUCTIVITY IN OXYGEN-DEFICIENT YBA2CU3OX [J].

BREWER, JH ;

ANSALDO, EJ ;

CAROLAN, JF ;

CHAKLADER, ACD ;

HARDY, WN ;

HARSHMAN, DR ;

HAYDEN, ME ;

ISHIKAWA, M ;

KAPLAN, N ;

KEITEL, R ;

KEMPTON, J ;

KIEFL, RF ;

KOSSLER, WJ ;

KREITZMAN, SR ;

KULPA, A ;

KUNO, Y ;

LUKE, GM ;

MIYATAKE, H ;

NAGAMINE, K ;

NAKAZAWA, Y ;

NISHIDA, N ;

NISHIYAMA, K ;

OHKUMA, S ;

RISEMAN, TM ;

ROEHMER, G ;

SCHLEGER, P ;

SHIMADA, D ;

STRONACH, CE ;

TAKABATAKE, T ;

UEMURA, YJ ;

WATANABE, Y ;

WILLIAMS, DL ;

YAMAZAKI, T ;

YANG, B .

PHYSICAL REVIEW LETTERS, 1988, 60 (11) :1073-1076

[8] TWO-DIMENSIONAL QUANTUM HEISENBERG-ANTIFERROMAGNET AT LOW-TEMPERATURES [J].

CHAKRAVARTY, S ;

HALPERIN, BI ;

NELSON, DR .

PHYSICAL REVIEW B, 1989, 39 (04) :2344-2371

[9]

CHUBUKOV AV, CONDMAT9701196

[10] Evolution of the Fermi surface with carrier concentration in Bi2Sr2CaCu2O8+delta [J].

Ding, H ;

Norman, MR ;

Yokoya, T ;

Takeuchi, T ;

Randeria, M ;

Campuzano, JC ;

Takahashi, T ;

Mochiku, T ;

Kadowaki, K .

PHYSICAL REVIEW LETTERS, 1997, 78 (13) :2628-2631

← 1 2 3 →