Magnetic memory based on La{sub 0.7}Ca{sub 0.3}MnO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7}/La{sub 0.7}Ca{sub 0.3}MnO{sub3} ferromagnet/superconductor hybrid structures.
We report a memory concept utilizing ferromagnet/superconductor/ferromagnet La{sub 0.7}Ca{sub 0.3}MnO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7}/La{sub 0.7}Ca{sub 0.3}MnO{sub 3} thin film hybrid structures. The orientation of the magnetic field with respect to the ferromagnetic easy axis has a strong effect on superconductivity as indicated by a strong variation in the magnetoresistance (MR). MR can be controlled by rotating a small magnetic field applied in the plane of the film in a way that is determined by the in-plane biaxial magnetic anisotropy. The proposed memory device has the advantages of superconducting detection elements (fast response and low dissipation), small (100-150 Oe) writing fields, and resistance read-out without need for applied field.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; Spanish MICINN; Hungarian Academy of Sciences
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 989084
- Report Number(s):
- ANL/MSD/JA-67900
- Journal Information:
- Appl. Phys. Lett., Journal Name: Appl. Phys. Lett. Journal Issue: 2010 Vol. 97; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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