Thermoelectric Response Driven by Spin-State Transition in La1-xCexCoO3 Perovskites
文献类型：期刊论文
| 作者 | Wang, Yang1,2; Sui, Yu1,3; Wang, Xianjie1; Su, Wenhui1; Cao, Wenwu1,4; Liu, Xiaoyang5 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 2期号:8页码:2213-2217 |
| 关键词 | thermoelectric electron-doping spin-state transition spin blockade configuration entropy |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/am100243e |
| 通讯作者 | Sui, Yu(suiyu@hit.edu.cn) |
| 英文摘要 | An unusual thermoelectric response was observed in n-type perovskite oxide La1-xCexCoO3. Combining transport and magnetic measurements, we found that the thermoelectric response is driven by the spin-state transition of Co3+. This transition destroys the spin blockade effect and induces an abrupt decrease of resistivity as well as an insulator metal transition. In contrast to the resistivity change, changes in thermopower and thermal conductivity are moderate. Consequently, a peak of figure of the merit ZT is present in a narrow temperature range. The room-temperature ZT approximate to 0.018 of La0.94Ce0.06CoO3 is comparable to that of p-type NaxCoO2. These observations can be helpful for the search and design of new thermoelectric materials. |
| 资助项目 | Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry), ; Natural Scientific Research innovation foundation in Harbin Institute of Technology[HIT. NSRIF.2009056] ; National Natural Science Foundation of China[10804024] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000281109300009 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry), ; Natural Scientific Research innovation foundation in Harbin Institute of Technology ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/102121]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sui, Yu |
| 作者单位 | 1.Harbin Inst Technol, CCMST, Dept Phys, Harbin 150001, Peoples R China 2.Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore 3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China 4.Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA 5.Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Coll Chem, Changchun 130012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yang,Sui, Yu,Wang, Xianjie,et al. Thermoelectric Response Driven by Spin-State Transition in La1-xCexCoO3 Perovskites[J]. ACS APPLIED MATERIALS & INTERFACES,2010,2(8):2213-2217. |
| APA | Wang, Yang,Sui, Yu,Wang, Xianjie,Su, Wenhui,Cao, Wenwu,&Liu, Xiaoyang.(2010).Thermoelectric Response Driven by Spin-State Transition in La1-xCexCoO3 Perovskites.ACS APPLIED MATERIALS & INTERFACES,2(8),2213-2217. |
| MLA | Wang, Yang,et al."Thermoelectric Response Driven by Spin-State Transition in La1-xCexCoO3 Perovskites".ACS APPLIED MATERIALS & INTERFACES 2.8(2010):2213-2217. |
入库方式： OAI收割
来源：金属研究所
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