LANDAU THEORY OF THE MAGNETIC PHASE-DIAGRAM OF CSMNBR3

被引：33

作者：

PLUMER, ML ^{[1
]}

CAILLE, A ^{[1
]}

机构：

[1] UNIV SHERBROOKE,DEPT PHYS,SHERBROOKE J1K 2R1,QUEBEC,CANADA

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.41.2543

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic-field temperature phase diagram of CsMnBr3 determined by recent neutron-scattering results is explained here by an investigation of a previously developed nonlocal Landau-type free energy. The degeneracy of helically and linearly polarized spin configurations at the Néel temperature is broken by a magnetic field and is shown to be responsible for the novel type of multicritical point observed at T=TN, H=0. The theory also accounts for the spin structures of the observed ordered phases as well as the temperature dependences of the phase boundaries. © 1990 The American Physical Society.

引用

页码：2543 / 2546

页数：4

共 25 条

[21] MULTICRITICAL POINTS IN THE MAGNETIC PHASE-DIAGRAMS OF AXIAL AND PLANAR ANTIFERROMAGNETS
PLUMER, ML
CAILLE, A
HOOD, K
[J]. PHYSICAL REVIEW B, 1989, 39 (07): : 4489 - 4499
[22] PHASE-DIAGRAMS OF SYSTEMS EXHIBITING INCOMMENSURATE STRUCTURES
SCHAUB, B
MUKAMEL, D
[J]. PHYSICAL REVIEW B, 1985, 32 (10): : 6385 - 6393
[23] SPLITTING OF THE NEEL TRANSITION IN HOLMIUM IN A MAGNETIC-FIELD
STEINITZ, MO
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[J]. PHYSICAL REVIEW B, 1987, 36 (01): : 783 - 784
[24] PHENOMENOLOGICAL THEORY OF THE MAGNETIC TRANSITIONS IN CSNICL3
ZHU, XD
WALKER, MB
[J]. PHYSICAL REVIEW B, 1987, 36 (07): : 3830 - 3832
[25] [No title captured]

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