Enhancing the low field magnetoresistive response in perovskite manganites

H. Y. Hwang, S. W. Cheong, B. Batlogg

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Abstract

We report significant improvement in the magnetoresistive (MR) response of perovskite manganites for 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 ferromagnets with various magnetic properties, this technique allows for enormous flexibility in ''designing'' a desired MR response for the manganites, particularly in low fields.

Original languageEnglish (US)
Pages (from-to)3494-3496
Number of pages3
JournalApplied Physics Letters
Volume68
Issue number24
DOIs
StatePublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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