THEORY OF THE MAGNETIC EXCITATIONS IN THE CU-O SUPERCONDUCTORS

被引：11

作者：

HEDEGARD, P

PEDERSEN, MB

机构：

[1] Physics Laboratory, H. C. Orsted Institute, DK-2100 Copenhagen O

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.42.10035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that the recent neutron-scattering data of Shirane et al. on large, superconducting La2-xSrxCuO4 single crystals can be explained in a model with bosonic spins. A part of the spin system Bose condenses at incommensurate k points, resulting in a spiral spin structure. The rest of the spin system goes into a pair condensate, whose excitations describe the spin excitations of the spiral state. Some suggestions for experimental tests are given. © 1990 The American Physical Society.

引用

页码：10035 / 10040

页数：6

共 25 条

[1] MAGNETIC DYNAMICS OF LA2CUO4 AND LA2-XBAXCUO4
AEPPLI, G
HAYDEN, SM
MOOK, HA
FISK, Z
CHEONG, SW
RYTZ, D
REMEIKA, JP
ESPINOSA, GP
COOPER, AS
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (17) : 2052 - 2055
[2] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY
ANDERSON, PW
[J]. SCIENCE, 1987, 235 (4793) : 1196 - 1198
[3] SPIN DYNAMICS IN THE SQUARE-LATTICE ANTIFERROMAGNET
AUERBACH, A
AROVAS, DP
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (05) : 617 - 620
[4] ANTIFERROMAGNETIC SPIN CORRELATIONS IN INSULATING, METALLIC, AND SUPERCONDUCTING LA2-XSRXCUO4
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
[J]. PHYSICAL REVIEW B, 1988, 38 (10): : 6614 - 6623
[5] STATIC AND DYNAMIC SPIN FLUCTUATIONS IN SUPERCONDUCTING LA2-XSRXCUO4
BIRGENEAU, RJ
ENDOH, Y
KAKURAI, K
HIDAKA, Y
MURAKAMI, T
KASTNER, MA
THURSTON, TR
SHIRANE, G
YAMADA, K
[J]. PHYSICAL REVIEW B, 1989, 39 (04): : 2868 - 2871
[6] KNIGHT-SHIFTS AND NUCLEAR-SPIN-RELAXATION RATES FOR 2-DIMENSIONAL MODELS OF CUO2
BULUT, N
HONE, DW
SCALAPINO, DJ
BICKERS, NE
[J]. PHYSICAL REVIEW B, 1990, 41 (04): : 1797 - 1811
[7] TWO-DIMENSIONAL QUANTUM HEISENBERG-ANTIFERROMAGNET AT LOW-TEMPERATURES
CHAKRAVARTY, S
HALPERIN, BI
NELSON, DR
[J]. PHYSICAL REVIEW B, 1989, 39 (04) : 2344 - 2371
[8] STATIC AND DYNAMIC SPIN CORRELATIONS IN PURE AND DOPED LA2CUO4
ENDOH, Y
YAMADA, K
BIRGENEAU, RJ
GABBE, DR
JENSSEN, HP
KASTNER, MA
PETERS, CJ
PICONE, PJ
THURSTON, TR
TRANQUADA, JM
SHIRANE, G
HIDAKA, Y
ODA, M
ENOMOTO, Y
SUZUKI, M
MURAKAMI, T
[J]. PHYSICAL REVIEW B, 1988, 37 (13): : 7443 - 7453
[9] RESONATING-VALENCE-BOND STATE WITH FERMIONIC CHARGES AND BOSONIC SPINS - MEAN-FIELD THEORY
FLENSBERG, K
HEDEGARD, P
PEDERSEN, MB
[J]. PHYSICAL REVIEW B, 1989, 40 (01): : 850 - 853
[10] SPIN DYNAMICS AT OXYGEN SITES IN YBA2CU3O7
HAMMEL, PC
TAKIGAWA, M
HEFFNER, RH
FISK, Z
OTT, KC
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (18) : 1992 - 1995

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