Skip to main content
eScholarship
Open Access Publications from the University of California

Spin-flop coupling and exchange bias in embedded complex oxide micromagnets

  • Author(s): Takamura, Y
  • Folven, E
  • Shu, JBR
  • Lukes, KR
  • Li, B
  • Scholl, A
  • Young, AT
  • Retterer, ST
  • Tybell, T
  • Grepstad, JK
  • et al.
Abstract

The magnetic domains of embedded micromagnets with 2 μm×2 μm dimensions defined in epitaxial La0.7Sr0.3MnO3 (LSMO) thin films and LaFeO3/LSMO bilayers were investigated using soft x-ray magnetic microscopy. Square micromagnets aligned with their edges parallel to the easy axes of LSMO provide an ideal experimental geometry for probing the influence of interface exchange coupling on the magnetic domain patterns. The observation of unique domain patterns not reported for ferromagnetic metal microstructures, namely divergent antiferromagnetic vortex domains and "Z"-type domains, suggests the simultaneous presence of spin-flop coupling and local exchange bias in this system. © 2013 American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View