Ferromagnetic critical correlations in AuFe re-entrant ferromagnets

被引：2

作者：

Pappas, C

Alba, M

Brulet, A

Mezei, F

机构：

[1] Hahn Meitner Inst Kernforsch Berlin GmbH, BENSC, D-14109 Berlin, Germany

[2] CEA, DRECAM, F-91191 Gif Sur Yvette, France

[3] CENS, LLB, F-91191 Gif Sur Yvette, France

来源：

PHYSICA B | 1997年 / 241卷

关键词：

phase transitions and critical phenomena; magnetism; neutron scattering;

D O I：

10.1016/S0921-4526(97)00654-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

From the paramagnetic critical neutron scattering of Au0.82Fe0.18 we derive the absolute values of the neutron bulk susceptibility chi(q=0)(T). The excellent agreement between chi(q=0)(T) and the susceptibility, measured with a Faraday balance, validates our analysis, in the frame of the Omstein-Zernicke formalism, and the resulting enhancement of the critical correlations by the disorder. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：594 / 596

页数：3

共 5 条

[1]

ALSNIELSEN, 1976, PHASE TRANSITION C A, V5, P87

[2] CRITICAL-BEHAVIOR OF DILUTED HEISENBERG FERROMAGNETS WITH COMPETING INTERACTIONS [J].

DEMEO, MD ;

REGER, JD ;

BINDER, K .

PHYSICA A, 1995, 220 (3-4) :628-647

[3] ROLE OF SPIN-NON-CONSERVING FORCES IN THE CRITICAL-DYNAMICS OF FE AT THE CURIE-POINT [J].

MEZEI, F .

PHYSICAL REVIEW LETTERS, 1982, 49 (15) :1096-1099

[4] Ferromagnetic critical correlations and dynamics in AuFe reentrant ferromagnets [J].

Pappas, C ;

Alba, M ;

Brulet, A ;

Viel, V ;

Mezei, F .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :6158-6160

[5] THE APPEARANCE OF CRITICAL-BEHAVIOR AT THE ONSET OF FERROMAGNETISM IN AUFE ALLOYS [J].

SARKISSIAN, BVB .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1981, 11 (10) :2191-2208

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