Cryogenic Magnetocaloric Effect in a Ferromagnetic Molecular Dimer

被引：277

作者：

Evangelisti, Marco ^{[1
]}

Roubeau, Olivier ^{[1
]}

Palacios, Elias ^{[1
]}

Camon, Agustin ^{[1
]}

Hooper, Thomas N. ^{[2
]}

Brechin, Euan K. ^{[2
]}

Alonso, Juan J. ^{[3
]}

机构：

[1] Univ Zaragoza, CSIC, ICMA, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[2] Univ Edinburgh, EaStCHEM Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland

[3] Univ Malaga, Dept Fis Aplicada 1, E-29071 Malaga, Spain

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2011年 / 50卷 / 29期

基金：

英国工程与自然科学研究理事会;

关键词：

gadolinium; low-temperature physics; magnetic properties; magnetocaloric effects; molecular refrigerants; ENHANCED MAGNETIC COOLERS; HEAT-CAPACITY; CLUSTERS; REFRIGERATION; ACETATE;

D O I：

10.1002/anie.201102640

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Molecoolers: An unprecedentedly large cryogenic magnetocaloric effect is observed in gadolinium acetate tetrahydrate (see picture, Gd pink, O red, C gray). The change in its magnetic entropy is ascribed to the high magnetic density combined with dominant ferromagnetism. For the first time in a molecular complex, direct measurements of the magnetocaloric effect corroborate indirect estimates based on heat capacity and magnetization. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：6606 / 6609

页数：4

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