Effects of vacuum annealing on the transport property of La0.67Sr0.33MnO3-delta films
文献类型：期刊论文
| 作者 | Sun, JR ; Yeung, HW ; Wong, HK ; Zhu, T ; Shen, BG |
| 刊名 | EUROPEAN PHYSICAL JOURNAL B
 |
| 出版日期 | 2003 |
| 卷号 | 35期号:4页码:481 |
| 关键词 | THIN-FILMS GIANT MAGNETORESISTANCE DOUBLE EXCHANGE LA1-XSRXMNO3 TRANSITION PHASE MAGNETOTRANSPORT LA0.7CA0.3MNO3 STOICHIOMETRY STRAIN |
| ISSN号 | 1434-6028 |
| 通讯作者 | Sun, JR: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Effects of oxygen content on the transport behavior of epitaxial La2/3Sr1/3MnO3-delta films on (110) NdGaO3 and (001) SrTiO3 substrates have been experimentally studied. A quantitative relation between the temperature of metal-to-insulator transition (T-p) and the content of oxygen vacancies is established, and it is found that oxygen non-stoichiometry causes a monotonic decrease of T-p. A comparison to crystals La1-xSrxMnO3 indicates that the reduction of hole concentration due to the incorporation of anionic vacancies dominates the variation of T-p, while the vacancies themselves influence the detailed features of the T-p-delta dependence. Strain in the film affects the effects of oxygen deficiency, and the metal-to-insulator transition disappears at a smaller delta value in tensily stressed films. In the temperature region above T-p, oxygen vacancies affect the resistive behavior of the films mainly by modulating the content of Mn4+. In contrast, extra effects due to the scattering of oxygen vacancies become important at low temperatures, causing an exponential increase of resistivity with delta. A further analysis indicates that oxygen deficiency enhances magnetic scattering, and leads to a resistivity upturn of the form - ln(T) when delta is significant. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36837]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun, JR,Yeung, HW,Wong, HK,et al. Effects of vacuum annealing on the transport property of La0.67Sr0.33MnO3-delta films[J]. EUROPEAN PHYSICAL JOURNAL B,2003,35(4):481. |
| APA | Sun, JR,Yeung, HW,Wong, HK,Zhu, T,&Shen, BG.(2003).Effects of vacuum annealing on the transport property of La0.67Sr0.33MnO3-delta films.EUROPEAN PHYSICAL JOURNAL B,35(4),481. |
| MLA | Sun, JR,et al."Effects of vacuum annealing on the transport property of La0.67Sr0.33MnO3-delta films".EUROPEAN PHYSICAL JOURNAL B 35.4(2003):481. |
入库方式： OAI收割
来源：物理研究所
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