Magnetocaloric effect of thin Dy films

Mello VD; Dantas AL; Carrico AS

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Magnetocaloric effect of thin Dy films

机译：Dy薄膜的磁热效应

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We report a theoretical study of the magnetocaloric effect (MCE) of Dy thin films, and show that the confinement of spins in the direction perpendicular to the surfaces leads to a considerable enhancement of the MCE. The adiabatic temperature change, Delta T, for external field strength change, Delta H, of the order of a few kOe, is much larger than what is found in bulk Dy, reaching Delta T/Delta H = 6 K/T for ultra-thin films. All (c) 2006 Elsevier Ltd. All rights reserved.

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来源
《Solid State Communications》 |2006年第10期|p. 447-451|共5页
作者
Mello VD; Dantas AL; Carrico AS;
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作者单位

Univ Fed Rio Grande Norte, Dept Fis Teor & Expt, BR-59078970 Natal, RN, Brazil;

Univ Estado Rio Grande Norte, Dept Fis, BR-59600900 Mossoro, RN, Brazil;

Univ Colorado, Dept Phys, Colorado Springs, CO 80918 USA;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
helimagnets; phase transitions of magnetic films; giant magnetocaloric effect; ANTIFERROMAGNETIC SUPERLATTICES; PHASE-TRANSITIONS; DYSPROSIUM; TEMPERATURE; BEHAVIOR;

机译：helimagnets;磁性膜的相变;巨大的磁热效应;反磁超晶格;相变;DY;温度;行为;

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Magnetocaloric effect of thin Dy films

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