Magnetic field dependence of Schottky anomaly in the specific heats of stripe-ordered superconductors La1.6-xNd0.4SrxCuO4
文献类型：期刊论文
| 作者 | L. Xie ; T. S. Su ; X. G. Li |
| 刊名 | Physica C-Superconductivity and Its Applications
 |
| 出版日期 | 2012 |
| 卷号 | 480页码:14-18 |
| 关键词 | La1.6-xNd0.4SrxCuO4 single crystal Specific heat Entropy Schottky anomaly temperature specific-heat electronic specific-heat neutron-scattering lattice la2-xsrxcuo4 nd2-yceycuo4 excitations capacity modes |
| ISSN号 | 0921-4534 |
| 中文摘要 | The specific heats of the stripe-ordered superconductors La1.6-xNd0.4SrxCuO4 (LNSCO x = 0.10, 0.12, 0.15) under different magnetic fields at low temperatures were systematically studied. It is found that the biggest entropy change associated with the structural transition corresponds to the most stable charge ordering state in sample x = 0.12. At low temperatures, a large Schottky anomaly specific heat appears because of the existence of magnetic rare-earth ions Nd3+. The peak of Schottky anomaly shifts gradually to higher temperatures with increasing magnetic fields, and can be fitted in terms of a model associated with the splitting of the ground-state doublet of Nd3+ in magnetic fields. The value of Lande factor g is about 4.90 +/- 0.08 for all the samples, and much higher than that obtained from Hund's rule for an individual Nd3+ due to the action of crystal field. (C) 2012 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60356]  |
| 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 | L. Xie,T. S. Su,X. G. Li. Magnetic field dependence of Schottky anomaly in the specific heats of stripe-ordered superconductors La1.6-xNd0.4SrxCuO4[J]. Physica C-Superconductivity and Its Applications,2012,480:14-18. |
| APA | L. Xie,T. S. Su,&X. G. Li.(2012).Magnetic field dependence of Schottky anomaly in the specific heats of stripe-ordered superconductors La1.6-xNd0.4SrxCuO4.Physica C-Superconductivity and Its Applications,480,14-18. |
| MLA | L. Xie,et al."Magnetic field dependence of Schottky anomaly in the specific heats of stripe-ordered superconductors La1.6-xNd0.4SrxCuO4".Physica C-Superconductivity and Its Applications 480(2012):14-18. |
入库方式： OAI收割
来源：金属研究所
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