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Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx
W. J. Ren; B. Li; W. Liang; C. Q. Jin; Z. D. Zhang
2014
Source PublicationJournal of Alloys and Compounds
ISSN0925-8388
Volume596Pages:69-72
AbstractWe report the tuning of magnetic transition and associated reversible magnetocaloric effect in CrO2 F-x(x) by manipulating the doping levels. At x = 0.12, the magnetic transition occurs at room temperature, with magnetic-entropy changes of around 4 J kg (1) K (1) and relative cooling power of 388 J kg (1) at magnetic-field changes from 0 to 50 kOe. The reversibility is verified by negligible thermal and magnetic hysteresis, as well as the positive slope at Arrott plots. The complete phase diagram for electronic and magnetic states is drawn for CrO2 xFx. This work indicates CrO1.88F0.12 is a promising candidate for room temperature magnetic refrigeration because of the nature of second-order transition and abundance of elements involved. (C) 2014 Elsevier B. V. All rights reserved.
description.department[ren, weijun ; li, bing ; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [liang, wen ; jin, changqing] chinese acad sci, beijing natl lab condensed matter phys, beijing 100190, peoples r china. [liang, wen ; jin, changqing] chinese acad sci, inst phys, beijing 100190, peoples r china. ; ren, wj (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; wjren@imr.ac.cn
KeywordCro2 Magnetocaloric Effect Relative Cooling Power High-pressure Synthesis Refrigeration Ferromagnetism Pressure Oxide
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72570
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
W. J. Ren,B. Li,W. Liang,et al. Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx[J]. Journal of Alloys and Compounds,2014,596:69-72.
APA W. J. Ren,B. Li,W. Liang,C. Q. Jin,&Z. D. Zhang.(2014).Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx.Journal of Alloys and Compounds,596,69-72.
MLA W. J. Ren,et al."Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx".Journal of Alloys and Compounds 596(2014):69-72.
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