Evidence of a magnetic glass state in the magnetocaloric material Gd5Ge4

被引：120

作者：

Roy, S. B. ^{[1
]}

Chattopadhyay, M. K.

Chaddah, P.

Moore, J. D.

Perkins, G. K.

Cohen, L. F.

Gschneidner, K. A., Jr.

Pecharsky, V. K.

机构：

[1] Raja Ramanna Ctr Adv Technol, Magnet & Superconducting Mat Sect, Indore 452013, India

[2] UGC DAE Consortium Sci Res, Indore 452017, India

[3] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

[4] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA

[5] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.74.012403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate the kinetic arrest of the first-order phase transition from the high-temperature antiferromagnetic state to the ferromagnetic ground state in zero and low applied magnetic fields, occurring within the experimental time scale in the magnetocaloric material Gd5Ge4. A magnetization study clearly reveals glasslike dynamics in the low-temperature antiferromagnetically ordered state. The observation of a glasslike magnetic state is unusual, but we expect that a similar phenomenon should exist in other magnetic systems.

引用

页数：4

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