Tunnel Magnetoresistance in La0.7Ca0.3MnO3/PrBa2Cu3O7/La0.7Ca0.3MnO3
- Unite Mixte de Physique CNRS/Thales, Palaiseau, France
- Universidad Complutense, Spain
- ORNL
We report large tunneling magnetoresistance in La{sub 0.7}Ca{sub 0.3}MnO{sub 3} (8 nm)/PrBa{sub 2}Cu{sub 3}O{sub 7} (2.4 nm)/La{sub 0.7}Ca{sub 0.3}MnO{sub 3} (50 nm) junctions. The coherent growth of the cuprate on the manganite allows the deposition of ultrathin barriers which are continuous and flat over long lateral distances. Epitaxial strain causes the top layer to be a weaker ferromagnet without a significant decrease in the spin polarization.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1003394
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 2 Vol. 88; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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