Unusual critical behavior of the electrical resistivity near the first-order magneto structural transition of Gd5(Si0.1Ge0.9)4

被引：1

作者：

Correia, FC

Araújo, JP

Sousa, JB

Braga, ME

Morellon, L

Algarabel, PA

Ibarra, MR

机构：

[1] IFIMUP, P-4169007 Oporto, Portugal

[2] Univ Porto, Dept Phys, FCUP, P-4169007 Oporto, Portugal

[3] Univ Zaragoza, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[4] Univ Zaragoza, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

[5] CSIC, E-50009 Zaragoza, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

magnetocaloric compound; magneto-structural first-order transition; electrical resistance; Martensitic transformation;

D O I：

10.1016/j.jmmm.2003.12.1069

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the temperature dependence of the electrical resistance (R) of Gd-5(Si0.1Ge0.9)(4) near its (martensitic) magnetostructural transition at T-S similar or equal to 84 K, over different series of 10-300 K thermal cycles (> 50). Large hysteresis is observed near T-S, with a progressive change in the R(T) behavior and in the residual resistance upon thermal cycling. At intermediate number of cycles (similar to13 - 28) a pre-martensitic phase occurs just below T-S, with the remarkable property of displaying a universal R(T) behavior. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：2370 / 2372

页数：3

共 32 条

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Sousa, JB
Pereira, AM
Correia, FC
Teixeira, JM
Araújo, JP
Pinto, RP
Braga, ME
Morellon, L
Algarabel, PA
Magen, C
Ibarra, MR
JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (15) : 2461 - 2476
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Sousa, JB
Braga, ME
Correia, FC
Carpinteiro, F
Morellon, L
Algarabel, PA
Ibarra, MR
PHYSICAL REVIEW B, 2003, 67 (13)
[3] Thermopower behavior in the Gd5(Si0.1Ge0.9)4 magnetocaloric compound from 4 to 300 K
Sousa, JB
Braga, ME
Correia, FC
Carpinteiro, F
Morellon, L
Algarabel, PA
Ibarra, R
JOURNAL OF APPLIED PHYSICS, 2002, 91 (07) : 4457 - 4460
[4] Giant magnetoresistance in the Ge-rich magnetocaloric compound, Gd5(Si0.1Ge0.9)4
Morellon, L
Algarabel, PA
Magen, C
Ibarra, MR
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 237 (02) : 119 - 123
[5] Angular dependence of the unusual first-order transition temperature in single-crystal Gd5(Si∼0.5Ge∼0.5)4
Han, M
Jiles, DC
Lee, SJ
Snyder, JE
Lograsso, TA
Schlagel, DL
IEEE TRANSACTIONS ON MAGNETICS, 2003, 39 (05) : 3151 - 3153
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Levin, EM
Pecharsky, VK
Gschneidner, KA
Tomlinson, P
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 210 (1-3) : 181 - 188
[7] Thermal expansion of single-crystal Gd5(Si1.95Ge2.05) showing unusual first-order transformation
Han, M
Paulsen, JA
Snyder, JE
Jiles, DC
Lograsso, TA
Schlagel, DL
IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (05) : 3252 - 3254
[8] Dynamics of the first-order magnetostructural transition in Gd5(SixGe1-x)4
Casanova, F
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EUROPEAN PHYSICAL JOURNAL B, 2004, 40 (04): : 427 - 431
[9] Dynamics of the first-order magnetostructural transition in Gd5(SixGe1-x)4
F. Casanova
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X. Batlle
E. Vives
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A. Planes
The European Physical Journal B - Condensed Matter and Complex Systems, 2004, 40 : 427 - 431
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Pinto, RP
Sousa, JB
Correia, FC
Araújo, JP
Braga, ME
Pereira, AM
Morellon, L
Algarabel, PA
Magen, C
Ibarra, MR
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 290 : 661 - 664

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