STRUCTURAL PHASE-TRANSITIONS AND WEAK FERROMAGNETISM IN LA2-XNDXCUO4+DELTA

被引：36

作者：

CRAWFORD, MK ^{[1
]}

HARLOW, RL ^{[1
]}

MCCARRON, EM ^{[1
]}

FARNETH, WE ^{[1
]}

HERRON, N ^{[1
]}

CHOU, H ^{[1
]}

COX, DE ^{[1
]}

机构：

[1] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.47.11623

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When cooled, La2-xNdxCuO4+delta undergoes structural transformations involving tilts of the CuO6 octahedra which can be controlled by varying x and delta. Using synchrotron x-ray and neutron powder diffraction we observe that the transformation from Bmab to Pccn space-group symmetry is accompanied by a 90-degrees copper spin reorientation in the basal plane. Furthermore, a second magnetic transition at lower temperatures yields weak ferromagnetism. These observations may have important implications for the suppression of superconductivity in the P4(2)/nCM phase of La1.875Ba0.125 CuO4.

引用

页码：11623 / 11626

页数：4

共 24 条

[1] MAGNETIC CORRELATIONS IN LA2NIO4+DELTA
AEPPLI, G
BUTTREY, DJ
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (02) : 203 - 206
[2] STRUCTURAL PHASE-TRANSFORMATIONS AND SUPERCONDUCTIVITY IN LA2-XBAXCUO4
AXE, JD
MOUDDEN, AH
HOHLWEIN, D
COX, DE
MOHANTY, KM
MOODENBAUGH, AR
XU, YW
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (23) : 2751 - 2754
[3] AXE JD, 1992, P WORKSHOP LATTICE E
[4] ELECTRON MECHANISM FOR THE STRUCTURAL PHASE-TRANSITIONS IN LA2-XBAXCUO4
BARISIC, S
ZELENKO, J
[J]. SOLID STATE COMMUNICATIONS, 1990, 74 (05) : 367 - 370
[5] BIRGENEAU RJ, 1989, PHYSICAL PROPERTIES, V1
[6] SPIN-ORBIT-COUPLING AND SPIRALS IN DOPED LA2CUO4
BONESTEEL, NE
RICE, TM
ZHANG, FC
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (17) : 2684 - 2687
[7] EFFECTIVE SPIN HAMILTONIAN FOR THE CUO PLANES IN LA2CUO4 AND METAMAGNETISM
COFFEY, D
BEDELL, KS
TRUGMAN, SA
[J]. PHYSICAL REVIEW B, 1990, 42 (10): : 6509 - 6514
[8] DZYALOSHINSKII-MORIYA INTERACTION IN THE CUPRATES
COFFEY, D
RICE, TM
ZHANG, FC
[J]. PHYSICAL REVIEW B, 1991, 44 (18): : 10112 - 10116
[9] LATTICE INSTABILITIES AND THE EFFECT OF COPPER-OXYGEN-SHEET DISTORTIONS ON SUPERCONDUCTIVITY IN DOPED LA2CUO4
CRAWFORD, MK
HARLOW, RL
MCCARRON, EM
FARNETH, WE
AXE, JD
CHOU, H
HUANG, Q
[J]. PHYSICAL REVIEW B, 1991, 44 (14): : 7749 - 7752
[10] CRAWFORD MK, 1992, P WORKSHOP LATTICE E

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