NONLINEAR SUSCEPTIBILITY AND FERROMAGNETIC-LIKE SCALING IN RANDOM MAGNETIC-ANISOTROPY ALLOYS

被引：4

作者：

ARNAUDAS, JI

DELMORAL, A

DEGROOT, PAJ

DELAFUENTE, C

机构：

[1] UNIV SOUTHAMPTON, DEPT PHYS, SOUTHAMPTON SO9 5NH, HANTS, ENGLAND

[2] UNIV ZARAGOZA, DFMC, MAGNETISMO LAB, E-50009 ZARAGOZA, SPAIN

[3] UNIV ZARAGOZA, ICMA, E-50009 ZARAGOZA, SPAIN

[4] CSIC, E-50009 ZARAGOZA, SPAIN

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷 / pt 1期

关键词：

Cold Wheel Technique - Ferromagnetic Like Scaling - Nonlinear Susceptibility - Random Magnetic Anisotropy Alloys - Spin Glass (SG) Character;

D O I：

10.1016/0304-8853(92)90771-F

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the critical behaviour of amorphous (Gd1-xTbx)2Cu random magnetic anisotropy (RMA) systems. The magnetisation data show ferromagnetic-like scaling, with exponents indicating a crossover, when x increases, from coherent spin-glass (CSG) to spin-glass (SG) character at low fields and from ferromagnet to ferromagnet of wandering axis at high fields. Scaling of the non-linear susceptibility yield exponents akin to another RMA spin glasses, suggesting that the present systems undergo a SG phase transition in zero field.

引用

页码：216 / 218

页数：3

共 10 条

[1] AHARONY A, 1980, PHYS REV LETT, V45, P1583, DOI 10.1103/PhysRevLett.45.1583
[2] MAGNETIC SCALING AND MAGNETOELASTIC PROPERTIES OF AMORPHOUS (GD1-XTBX)2CU
ARNAUDAS, JI
DELMORAL, A
DEGROOT, PAJ
RAINFORD, BD
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 101 (1-3) : 65 - 68
[3] ORDERING IN FERROMAGNETS WITH RANDOM ANISOTROPY
CHUDNOVSKY, EM
SASLOW, WM
SEROTA, RA
[J]. PHYSICAL REVIEW B, 1986, 33 (01): : 251 - 261
[4] EFFECT OF DIPOLAR COUPLING ON THE MAGNETISM OF DISORDERED SOLIDS
CULLEN, J
[J]. JOURNAL OF APPLIED PHYSICS, 1987, 61 (08) : 4413 - 4415
[5] EXCHANGE INTERACTIONS AND RANDOM ANISOTROPIES IN AMORPHOUS R2T ALLOYS
DEGROOT, PAJ
RAINFORD, BD
KILCOYNE, SH
ELKHADI, M
ARNAUDAS, JI
SOLIMAN, A
[J]. JOURNAL DE PHYSIQUE, 1988, 49 (C-8): : 1243 - 1244
[6] DELMORAL A, IN PRESS J PHYS COND
[7] MAGNETIC STATIC AND SCALING PROPERTIES OF THE WEAK RANDOM-AXIS MAGNET (DYXY1-X)AL2
GEHRING, PM
SALAMON, MB
DELMORAL, A
ARNAUDAS, JI
[J]. PHYSICAL REVIEW B, 1990, 41 (13): : 9134 - 9147
[8] STATIC CRITICAL PHENOMENA IN FERROMAGNETS WITH QUENCHED DISORDER
KAUL, SN
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 53 (1-2) : 5 - 53
[9] CRITICAL-BEHAVIOR IN ALLOYS WITH RANDOM MAGNETIC-ANISOTROPY
LEE, KM
OSHEA, MJ
[J]. JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) : 5781 - 5783
[10] SELLMYER DJ, 1988, J APPL PHYS, V68, P3743

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