Ferroic metal-oxide films grown by polymer assisted deposition

被引:13
|
作者
Jain, M. [1 ]
Lin, Y. [1 ]
Shukla, P. [1 ]
Li, Y. [1 ]
Wang, H. [1 ]
Hundley, M. F. [1 ]
Burrell, A. K. [1 ]
McCleskey, T. M. [1 ]
Foltyn, S. R. [1 ]
Jia, Q. X. [1 ]
机构
[1] Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA
基金
美国能源部;
关键词
polymer assisted deposition; BST; colossal magnetoresistance; ferroelectric; tunability;
D O I
10.1016/j.tsf.2006.11.144
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
yPolymer assisted deposition is a versatile technique to grow simple and complex metal-oxide thin films. In this paper we report the structural and electrical properties of ferroic materials, namely La0.67M0.33MnO3 (M = Sr and Ca) and Ba1-xSrxTiO3 (x= 0.3, 0.5, and 0.7) prepared using this process. The films were prepared on single crystalline LaAlO3 substrates. The films were highly c-axis oriented and epitaxial in nature. The ferromagnetic La0.67Sr0.33MnO3 and La0.67Ca0.33MnO3 films show intrinsic transport properties with maximum magnetoresistance values (at applied field of 5 T) of -50% and -88%, respectively. The highest dielectric constant (similar to 1010) and tunability (similar to 69%) of Ba1-xSrxTiO3 film occurs at x=0.3 for films, which is at the phase boundary of tetragonal and cubic. Published by Elsevier B.V.
引用
收藏
页码:6411 / 6415
页数:5
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