Transversal magneto-resistance in epitaxial Fe 3O 4 and Fe 3O 4/NiO exchange biased system

Han Chun Wu, R. Ramos, R. G S Sofin, Zhi Min Liao, M. Abid, I. V. Shvets

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We have investigated transversal magneto-resistance (MR) in epitaxial Fe 3O 4 and Fe 3O 4/NiO exchange biased systems. It was found that the magnetic field dependence and the magnitude of the transversal MR in both systems strongly depend on the bias current density which suggests that the transversal MR in metal oxide with anti-phase boundaries (APBs) cannot be described by the conventional transversal MR for a single magnetic domain. The effect of electron scattering at the APBs may have to be considered. Angular dependence of the transversal MR at low temperature further indicates that the current explanation of the origin of transversal MR on the basis of anisotropic MR alone may not be sufficient for a system experiencing charge ordering.

Original languageEnglish
Article number052402
JournalApplied Physics Letters
Volume101
Issue number5
DOIs
Publication statusPublished - Jul 30 2012

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antiphase boundaries
magnetic domains
metal oxides
electron scattering
current density
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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Transversal magneto-resistance in epitaxial Fe 3O 4 and Fe 3O 4/NiO exchange biased system. / Wu, Han Chun; Ramos, R.; Sofin, R. G S; Liao, Zhi Min; Abid, M.; Shvets, I. V.

In: Applied Physics Letters, Vol. 101, No. 5, 052402, 30.07.2012.

Research output: Contribution to journalArticle

Wu, Han Chun ; Ramos, R. ; Sofin, R. G S ; Liao, Zhi Min ; Abid, M. ; Shvets, I. V. / Transversal magneto-resistance in epitaxial Fe 3O 4 and Fe 3O 4/NiO exchange biased system. In: Applied Physics Letters. 2012 ; Vol. 101, No. 5.
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