Directionally controlled superconductivity in La{sub 0.7}Ca{sub 0.3}MnO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}/La{sub 0.7}Ca{sub 0.3}MnO{sub 3} spin switches.
We report on the magnetic anisotropy controlled modulation of the superconductivity in La{sub 0.7}Ca{sub 0.3}MnO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}/La{sub 0.7}Ca{sub 0.3}MnO{sub 3} 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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); Hungarian Academy of Sciences
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 989072
- Report Number(s):
- ANL/MSD/JA-66288; TRN: US201019%%266
- Journal Information:
- Phys. Rev. B, Vol. 81, Issue 2010
- Country of Publication:
- United States
- Language:
- ENGLISH
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