Enhancement of the magnetotransport and magnetoresistive anisotropy in Sm0.55Sr0.45MnO3/Nd0.55Sr0.45MnO3 bilayers

被引:23
作者
Egilmez, M. [1 ]
Abdelhadi, M. [1 ,2 ]
Salman, Z. [3 ,4 ]
Chow, K. H. [1 ]
Jung, J. [1 ]
机构
[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada
[2] Univ Hail, Dept Phys, Hail 2440, Saudi Arabia
[3] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
[4] Rutherford Appleton Lab, ISIS Facil, Oxford OX11 0QX, Oxon, England
基金
加拿大自然科学与工程研究理事会;
关键词
FILMS; TRANSITION;
D O I
10.1063/1.3231441
中图分类号
O59 [应用物理学];
学科分类号
摘要
In a sharp contrast to bulk Sm0.55Sr0.45MnO3 (SSMO) the SSMO films grown on LaAlO3 and SrTiO3 substrates exhibit insulating behavior with a negligible magnetoresistive effect. However, when these films are buffered by a thin layer of Nd0.55Sr0.45MnO3 a large low field magnetoresistance along with the bulklike properties are observed. These results are reproducible and suggest that the low field magnetoresistance and magnetoresistive anisotropy could be enhanced dramatically in multilayered manganite films. These changes are attributed to the differences in the strain states of these films. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3231441]
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页数:3
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