中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 物理研究所
  3. 物理所公开发表论文
  4. 期刊论文
Oxygen content dependence of the transport property of La2/3Sr1/3CoO3-delta film

文献类型：期刊论文

作者Sun, JR ; Yeung, HW ; Li, H ; Zhao, K ; Chan, HN ; Wong, HK
刊名JOURNAL OF APPLIED PHYSICS
出版日期2001
卷号90期号:6页码:2831
关键词SPIN-STATE-TRANSITION THIN-FILMS MAGNETORESISTANCE LA1-XSRXCOO3 BEHAVIOR
ISSN号0021-8979
通讯作者Sun, JR (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 1000080, Peoples R China.
中文摘要Effects of oxygen content on the resistivity of epitaxial (110)La2/3Sr1/3CoO3-delta film have been experimentally studied. The oxygen release, measured by the change of lattice parameter, was controlled by annealing the film at different temperatures in vacuum. Significant oxygen loss can take place at temperature as low as similar to 200 degreesC. A quantitative relation between resistivity rho and oxygen deficiency delta was established. For delta <0.07, a linear decrease of the resistive transition temperature with was found. The temperature dependence of the low temperature resistivity follows rho proportional toT(2) for delta <0.046, and proportional to exp[(T-0/T)(1/2)] for 0.067<<0.16. A transition from T-1/2 variable-range hopping to T-1/4 variable-range hopping takes place for >0.17, which may be a result of the absence of Co4+ which are the nuclei of metallic clusters. Compared to La1-xSrxCoO3 with similar Co4+ content, the resistivity of the La2/3Sr1/3CoO3-delta film is significantly low, which may be the consequence of a larger quantity of Sr in the film. (C) 2001 American Institute of Physics.
收录类别SCI
语种英语
公开日期2013-09-24
源URL[http://ir.iphy.ac.cn/handle/311004/50539]  
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,Li, H,et al. Oxygen content dependence of the transport property of La2/3Sr1/3CoO3-delta film[J]. JOURNAL OF APPLIED PHYSICS,2001,90(6):2831.
APA Sun, JR,Yeung, HW,Li, H,Zhao, K,Chan, HN,&Wong, HK.(2001).Oxygen content dependence of the transport property of La2/3Sr1/3CoO3-delta film.JOURNAL OF APPLIED PHYSICS,90(6),2831.
MLA Sun, JR,et al."Oxygen content dependence of the transport property of La2/3Sr1/3CoO3-delta film".JOURNAL OF APPLIED PHYSICS 90.6(2001):2831.

入库方式： OAI收割

来源：物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。