Interstitial-nitrogen effect on phase transition and magnetocaloric effect in Mn(As,Si) (invited)
文献类型：期刊论文
| 作者 | W. B. Cui ; X. K. Lv ; F. Yang ; Y. Yu ; R. Skomski ; X. G. Zhao ; W. Liu ; Z. D. Zhang |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2010 |
| 卷号 | 107期号:9 |
| 关键词 | adiabatic temperature-change magnetic refrigeration gd5si2ge2 |
| ISSN号 | 0021-8979 |
| 中文摘要 | The effect of interstitial nitrogen on the phase transition and magnetocaloric behavior of MnAs(1-x)Si(x)N(delta) (x=0.03, 0.06, and 0.09) is investigated. The interstitial nitrogen atoms cause the step-scanned x-ray diffraction peaks to shift toward lower angles and lower the Curie temperature, whereas silicon addition increases the Curie temperature to near room temperature. The thermal hysteresis is reduced to nearly 0 in MnAs(1-x)Si(x)N(delta), which is beneficial to practical applications. For a field change of 5 T, the largest magnetic entropy change and refrigerant capacity are 14.6 J kg(-1) K(-1) at 247 K and 360 J kg(-1), which is slightly higher than the entropy change in the parent alloy. Finally, we briefly discuss the occurrence and origin of the "virgin effect" in MnAs. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3358617] |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31057]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. B. Cui,X. K. Lv,F. Yang,et al. Interstitial-nitrogen effect on phase transition and magnetocaloric effect in Mn(As,Si) (invited)[J]. Journal of Applied Physics,2010,107(9). |
| APA | W. B. Cui.,X. K. Lv.,F. Yang.,Y. Yu.,R. Skomski.,...&Z. D. Zhang.(2010).Interstitial-nitrogen effect on phase transition and magnetocaloric effect in Mn(As,Si) (invited).Journal of Applied Physics,107(9). |
| MLA | W. B. Cui,et al."Interstitial-nitrogen effect on phase transition and magnetocaloric effect in Mn(As,Si) (invited)".Journal of Applied Physics 107.9(2010). |
入库方式： OAI收割
来源：金属研究所
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