Magnetic field-mediated two magnetic states in BiFeO3/CoPt layered structures

Yue Wang, Takashi Harumoto, Jian Wang, Eiji Suzuki, Katsuyuki Nakada, Yoshio Nakamura, Shigeki Nakagawa, Ji Shi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

BiFeO3/L10 CoPt layered films are prepared by sputtering on MgO (0 0 1) substrates. Both X-ray diffraction and transmission electron microscopy confirm the (0 0 1)-epitaxial growth. Magnetic field-mediated two magnetic states phenomenon has been observed in this layered films. Element mapping results indicate there exist Co-deficient CoPt layer (∼1.5 nm) and Co-containing BiFeO3 layer (∼2 nm) adjacent to the BiFeO3/CoPt interface. After applying in-plane or out-of-plane external magnetic field, moments in the above layers react differently, leading to two disparate magnetic states: coupling and decoupling states.

Original languageEnglish
Pages (from-to)206-210
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume453
DOIs
Publication statusPublished - 2018 May 1

Keywords

  • BiFeO
  • Field-mediated magnetic states
  • Interface coupling
  • L1 CoPt

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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