Evidence of weak ferromagnetism in the C14 Laves phase (Fe1-xCOx)2Nb system

被引：5

作者：

Paduani, C. ^{[1
]}

Schaf, J. ^{[2
]}

Persiano, A. I. C. ^{[3
]}

Ardisson, J. D. ^{[4
]}

Takeuchi, A. Y. ^{[5
]}

Raposo, M. T. ^{[6
]}

机构：

[1] DF UFSC, BR-88040900 Florianopolis, SC, Brazil

[2] IF UFRGS, BR-91501970 Porto Alegre, RS, Brazil

[3] DF ICEX UFMG, BR-30161970 Belo Horizonte, MG, Brazil

[4] CDTN, BR-30123970 Belo Horizonte, MG, Brazil

[5] DF UFES, BR-29075910 Vitoria, ES, Brazil

[6] DCNAT UFSJ, BR-36300000 Sao Joao Del Rei, Brazil

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 474卷 / 1-2期

关键词：

Laves phases; Intermetallic compounds; Iron alloys; Spin-glass; MAGNETIC-PROPERTIES; NBFE2; ANTIFERROMAGNETISM; (ZR1-XNBX)FE2; TRANSITIONS; ORDER; MN; CO; NI;

D O I：

10.1016/j.jallcom.2008.06.119

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work are studied the structure and magnetic properties of the (Fe1-xCox)(2)Nb alloys with X-ray diffraction and magnetization measurements. The results confirm the formation of the C14 Laves phase in the Co concentration range 0 <= x <= 0.55. The unit cell volume decreases with the increase of the cobalt concentration and is larger than in Fe2Nb. Magnetization measurements indicate that this system is weakly ferromagnetic at low temperatures for x <= 0.55. From the behavior of the M(T) curves a cluster-glass-like mechanism is predicted for this system below 50 K. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：34 / 37

页数：4

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