Directionally controlled superconductivity in ferromagnet/superconductor/ ferromagnet trilayers with biaxial easy axes

C. Visani, N. M. Nemes, M. Rocci, Z. Sefrioui, C. Leon, S. G.E. Te Velthuis, A. Hoffmann, M. R. Fitzsimmons, F. Simon, T. Feher, M. Garcia-Hernandez, J. Santamaria

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the magnetic anisotropy controlled modulation of the superconductivity in La0.7 Ca0.3 MnO3/ YBa 2 Cu3O7-δ / La0.7 Ca 0.3 MnO3 ferromagnet/superconductor/ferromagnet hybrids with biaxial easy axes. The magnetoresistance (MR) is determined by the local misalignment of the magnetizations in the two layers and exhibits a positive MR plateau for antiparallel alignment along the easy axes and negative MR peaks at the coercive field near the hard axes. This evidences the importance of spin-dependent interfacial scattering effects (as opposed to stray fields) in the MR behavior of superconducting oxide inverse spin switches.

Original languageEnglish (US)
Article number094512
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number9
DOIs
StatePublished - Mar 11 2010
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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