Large room-temperature spin-dependent tunneling magnetoresistance in polycrystalline Fe 3 O 4 films

Hui Liu, E. Y. Jiang, H. L. Bai, R. K. Zheng, H. L. Wei, Xixiang Zhang

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

Spin-dependent tunneling magnetoresistance in polycrystalline Fe 3 O 4 films was discussed. Transmission electron microscopy (TEM) was used to image Fe 3 O 4 grains. It was found that the tunneling of spin-polarized electrons across the antiferromagnetic coupled grain boundaries dominates the transport properties of the film.

Original languageEnglish (US)
Pages (from-to)3531-3533
Number of pages3
JournalApplied Physics Letters
Volume83
Issue number17
DOIs
StatePublished - Oct 27 2003

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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