Enhancement of the spin entropy in Na(x)Co(2)O(4) by Ni doping
文献类型：期刊论文
| 作者 | G. D. Tang ; T. Yang ; X. N. Xu ; C. P. Tang ; L. Qiu ; Z. D. Zhang ; L. Y. Lv ; Z. H. Wang ; Y. W. Du |
| 刊名 | Applied Physics Letters
 |
| 出版日期 | 2010 |
| 卷号 | 97期号:3 |
| 关键词 | doping profiles entropy magnetocaloric effects nickel sodium compounds spin dynamics X-ray absorption spectra thermopower |
| ISSN号 | 0003-6951 |
| 中文摘要 | The effects of Ni doping on the spin entropy in Na(x)Co(2)O(4) (x=1.2) has been carefully studied. A strong magnetic-field suppression of the thermopower indicates the emergence of large spin-entropy effect. The magnetothermopower increases with increasing Ni doping level, suggesting that Ni doping improves the spin entropy of Na(x)Co(2)O(4). Based on analysis of x-ray absorption spectra, we propose a spin-entropy competition mechanism to explain well the spin-entropy enhancement. (C) 2010 American Institute of Physics. [doi:10.1063/1.3467205] |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31469]  |
| 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 | G. D. Tang,T. Yang,X. N. Xu,et al. Enhancement of the spin entropy in Na(x)Co(2)O(4) by Ni doping[J]. Applied Physics Letters,2010,97(3). |
| APA | G. D. Tang.,T. Yang.,X. N. Xu.,C. P. Tang.,L. Qiu.,...&Y. W. Du.(2010).Enhancement of the spin entropy in Na(x)Co(2)O(4) by Ni doping.Applied Physics Letters,97(3). |
| MLA | G. D. Tang,et al."Enhancement of the spin entropy in Na(x)Co(2)O(4) by Ni doping".Applied Physics Letters 97.3(2010). |
入库方式： OAI收割
来源：金属研究所
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