| Coupled caloric effects in multiferroics |
| H. Meng; B. Li; W. J. Ren; Z. D. Zhang
|
| 2013
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| 发表期刊 | Physics Letters A
 |
| ISSN | 0375-9601
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| 卷号 | 377期号:7页码:567-571 |
| 摘要 | We propose a conception - coupled caloric effect where the enhanced caloric effects originate from the coupling among magnetic, ferroelectric, and structural degrees of freedom. Specifically, as the magneto-electric case, the magnitude of the coupled caloric effect was evaluated for a ferromagnetic-ferroelectric system using a phenomenological calculation based on Landau phase transition theory. The isothermal entropy change is greatly enhanced by increasing the magneto-electric coupling strength. This work indicates that the caloric effect in a ferromagnetic-ferroelectric coupled system consists of pure magnetic entropy change (Delta S-M), pure ferroelectric one (Delta S-E), and coupled one (Delta S-ME) that plays a significant part. The counterpart of the last one in magneto-structural coupled system was usually neglected. Our study provides a route to energy-efficient refrigeration via realization of coupling among various ferroic orders. (C) 2013 Elsevier B.V. All rights reserved. |
| 部门归属 | [meng, hui
; li, bing
; ren, weijun
; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [meng, hui
; li, bing
; ren, weijun
; zhang, zhidong] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.
; li, b (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.
; binglimag@gmail.com
|
| 关键词 | Magnetocaloric Effect
Electrocaloric Effect
Magneto-electric Coupling
Multiferroic
Solid-state Refrigeration
Electrocaloric Materials
Orders
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| URL | 查看原文
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| 语种 | 英语
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/71407
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
H. Meng,B. Li,W. J. Ren,et al. Coupled caloric effects in multiferroics[J]. Physics Letters A,2013,377(7):567-571.
|
| APA |
H. Meng,B. Li,W. J. Ren,&Z. D. Zhang.(2013).Coupled caloric effects in multiferroics.Physics Letters A,377(7),567-571.
|
| MLA |
H. Meng,et al."Coupled caloric effects in multiferroics".Physics Letters A 377.7(2013):567-571.
|
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