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Title: 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.

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Spanish MICINN; Hungarian Academy of Sciences
OSTI Identifier:
989084
Report Number(s):
ANL/MSD/JA-67900
Journal ID: 0003-6951; TRN: US201019%%276
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Appl. Phys. Lett.
Additional Journal Information:
Journal Volume: 97; Journal Issue: 2010
Country of Publication:
United States
Language:
ENGLISH
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; DETECTION; MAGNETIC FIELDS; MAGNETORESISTANCE; MEMORY DEVICES; ORIENTATION; SUPERCONDUCTIVITY; THIN FILMS

Citation Formats

Nemes, N. M., Visani, C., Leon, C., Garcia-Hernandez, M., Simon, F., Feher, T., te Velthuis, S. G. E., Hoffmann, A., Santamaria, J., Materials Science Division, Univ. Complutense de Madrid, Inst. de Ciencia de Materiales de Madrid, Budapest Univ. of Technology, and Hungarian Academy of Sciences. 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.. United States: N. p., 2010. Web. doi:10.1063/1.3464960.
Nemes, N. M., Visani, C., Leon, C., Garcia-Hernandez, M., Simon, F., Feher, T., te Velthuis, S. G. E., Hoffmann, A., Santamaria, J., Materials Science Division, Univ. Complutense de Madrid, Inst. de Ciencia de Materiales de Madrid, Budapest Univ. of Technology, & Hungarian Academy of Sciences. 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.. United States. doi:10.1063/1.3464960.
Nemes, N. M., Visani, C., Leon, C., Garcia-Hernandez, M., Simon, F., Feher, T., te Velthuis, S. G. E., Hoffmann, A., Santamaria, J., Materials Science Division, Univ. Complutense de Madrid, Inst. de Ciencia de Materiales de Madrid, Budapest Univ. of Technology, and Hungarian Academy of Sciences. Fri . "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.". United States. doi:10.1063/1.3464960.
@article{osti_989084,
title = {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.},
author = {Nemes, N. M. and Visani, C. and Leon, C. and Garcia-Hernandez, M. and Simon, F. and Feher, T. and te Velthuis, S. G. E. and Hoffmann, A. and Santamaria, J. and Materials Science Division and Univ. Complutense de Madrid and Inst. de Ciencia de Materiales de Madrid and Budapest Univ. of Technology and Hungarian Academy of Sciences},
abstractNote = {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.},
doi = {10.1063/1.3464960},
journal = {Appl. Phys. Lett.},
number = 2010,
volume = 97,
place = {United States},
year = {2010},
month = {1}
}