Enhancing the low field magnetoresistive response in perovskite manganites

被引:49
作者
Hwang, HY [1 ]
Cheong, SW [1 ]
Batlogg, B [1 ]
机构
[1] PRINCETON UNIV,JOSEPH HENRY LABS PHYS,PRINCETON,NJ 08544
关键词
D O I
10.1063/1.115769
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report significant improvement in the magnetoresistive (MR) response of perovskite manganites fur small applied fields by the use of heterostructures with soft ferromagnets. At room temperature, a 5900-fold enhancement of the MR response at 10 Oe in La2/3Ca1/3MnO3 has been achieved using (Mn,Zn)Fe2O4 as the soft ferromagnet. By utilizing soft ferromagnet with various magnetic properties, this technique allows for enormous flexibility in ''designing'' a desired MR response for the manganites, particularly in low fields. (C) 1996 American Institute of Physics.
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页码:3494 / 3496
页数:3
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