| Seebeck coefficient of Ln (x) Ca(1-x) MnO(3) perovskites in paramagnetic state | |
| Y. Wang; Y. Sui; X. J. Wang; W. H. Su | |
| 2011 | |
| 发表期刊 | Applied Physics a-Materials Science & Processing
 |
| ISSN | 0947-8396 |
| 卷号 | 104期号:1页码:135-142 |
| 摘要 | The Seebeck coefficient is a function of carrier concentration and configurational entropy. In this report, we semi-theoretically investigate the Seebeck coefficient of Ln (x) Ca(1-x) MnO(3) (Ln=Rare-earth) perovskites based on the electronic structure of the 3d orbitals of Mn ions, using the developed Heikes model, Boltzmann transport model, and diffusion model. The results show that the Seebeck coefficient of such a strongly correlated electron system in paramagnetic state is remarkably affected by site degeneracy. As temperature decreases, the evolution of the spin and orbital degrees of freedom together with the change in phonon scattering mode describes the Seebeck coefficient behavior satisfactorily. The phonon drag effect at low temperature is also discussed. |
| 部门归属 | [wang, yang] nanyang technol univ, div phys & appl phys, sch phys & math sci, singapore 637371, singapore. [wang, yang; sui, yu; wang, xianjie; su, wenhui] harbin inst technol, ctr condensed matter sci & technol ccmst, dept phys, harbin 150001, peoples r china. [sui, yu; su, wenhui] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wang, y (reprint author), nanyang technol univ, div phys & appl phys, sch phys & math sci, 21 nanyang link, singapore 637371, singapore;wang_yang@ntu.edu.sg suiyu@hit.edu.cn |
| 关键词 | High-temperature Thermoelectric-power Thermal-conductivity Transport-properties Single-crystals Electron Thermopower Manganites Oxide Heat |
| URL | 查看原文 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/30757 |
| 专题 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Wang,Y. Sui,X. J. Wang,et al. Seebeck coefficient of Ln (x) Ca(1-x) MnO(3) perovskites in paramagnetic state[J]. Applied Physics a-Materials Science & Processing,2011,104(1):135-142. |
| APA | Y. Wang,Y. Sui,X. J. Wang,&W. H. Su.(2011).Seebeck coefficient of Ln (x) Ca(1-x) MnO(3) perovskites in paramagnetic state.Applied Physics a-Materials Science & Processing,104(1),135-142. |
| MLA | Y. Wang,et al."Seebeck coefficient of Ln (x) Ca(1-x) MnO(3) perovskites in paramagnetic state".Applied Physics a-Materials Science & Processing 104.1(2011):135-142. |
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