Magnetoresistance in La0.7Ca0.3MnO3-YBa2Cu3O7 F/S/F trilayers

V. Peña; C. Visani; F. Bruno; J. Garcia-Barriocanal; D. Arias; A. Rivera; Z. Sefrioui; C. Leon; S. G E Te Velthuis; A. Hoffmann; N. Nemes; M. Garcia-Hernandez; J. L. Martinez; J. Santamaria

doi:10.1016/j.jmmm.2007.03.082

Magnetoresistance in La_0.7Ca_0.3MnO₃-YBa₂Cu₃O₇ F/S/F trilayers

V. Peña, C. Visani, F. Bruno, J. Garcia-Barriocanal, D. Arias, A. Rivera, Z. Sefrioui, C. Leon, S. G E Te Velthuis, A. Hoffmann, N. Nemes, M. Garcia-Hernandez, J. L. Martinez, J. Santamaria

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Abstract

We report large magnetoresistance in ferromagnet/superconductor/ferromagnet structures made of La_0.7Ca_0.3MnO₃ and YBa₂Cu₃O₇ at temperatures along the resistive transition. We find that the magnetoresistance phenomenon is independent on the orientation of electric current versus field. Furthermore, the effect is also independent on the sweep rate of the magnetic field. This excludes interpretations in terms of spontaneous vortices or anisotropic magnetoresistance of the ferromagnetic layers and supports the view that the magnetoresistance phenomenon originates at the spin-dependent transport of quasiparticles transmitted from the ferromagnetic electrodes into the superconductor.

Original language	English (US)
Pages (from-to)	e745-e748
Journal	Journal of Magnetism and Magnetic Materials
Volume	316
Issue number	2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jmmm.2007.03.082
State	Published - Sep 2007

Bibliographical note

Funding Information:
Work supported by MCYT MAT 2005-06024.

Keywords

Magnetoresistance-multilayers
Multilayers-metallic
Superconductivity-high T

Publisher link

10.1016/j.jmmm.2007.03.082

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Peña, V., Visani, C., Bruno, F., Garcia-Barriocanal, J., Arias, D., Rivera, A., Sefrioui, Z., Leon, C., Te Velthuis, S. G. E., Hoffmann, A., Nemes, N., Garcia-Hernandez, M., Martinez, J. L., & Santamaria, J. (2007). Magnetoresistance in La_0.7Ca_0.3MnO₃-YBa₂Cu₃O₇ F/S/F trilayers. Journal of Magnetism and Magnetic Materials, 316(2 SPEC. ISS.), e745-e748. https://doi.org/10.1016/j.jmmm.2007.03.082

Peña, V, Visani, C, Bruno, F, Garcia-Barriocanal, J, Arias, D, Rivera, A, Sefrioui, Z, Leon, C, Te Velthuis, SGE, Hoffmann, A, Nemes, N, Garcia-Hernandez, M, Martinez, JL & Santamaria, J 2007, 'Magnetoresistance in La_0.7Ca_0.3MnO₃-YBa₂Cu₃O₇ F/S/F trilayers', Journal of Magnetism and Magnetic Materials, vol. 316, no. 2 SPEC. ISS., pp. e745-e748. https://doi.org/10.1016/j.jmmm.2007.03.082

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title = "Magnetoresistance in La0.7Ca0.3MnO3-YBa2Cu3O7 F/S/F trilayers",

abstract = "We report large magnetoresistance in ferromagnet/superconductor/ferromagnet structures made of La0.7Ca0.3MnO3 and YBa2Cu3O7 at temperatures along the resistive transition. We find that the magnetoresistance phenomenon is independent on the orientation of electric current versus field. Furthermore, the effect is also independent on the sweep rate of the magnetic field. This excludes interpretations in terms of spontaneous vortices or anisotropic magnetoresistance of the ferromagnetic layers and supports the view that the magnetoresistance phenomenon originates at the spin-dependent transport of quasiparticles transmitted from the ferromagnetic electrodes into the superconductor.",

keywords = "Magnetoresistance-multilayers, Multilayers-metallic, Superconductivity-high T",

author = "V. Pe{\~n}a and C. Visani and F. Bruno and J. Garcia-Barriocanal and D. Arias and A. Rivera and Z. Sefrioui and C. Leon and {Te Velthuis}, {S. G E} and A. Hoffmann and N. Nemes and M. Garcia-Hernandez and Martinez, {J. L.} and J. Santamaria",

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AU - Peña, V.

AU - Visani, C.

AU - Bruno, F.

AU - Garcia-Barriocanal, J.

AU - Arias, D.

AU - Rivera, A.

AU - Sefrioui, Z.

AU - Leon, C.

AU - Te Velthuis, S. G E

AU - Hoffmann, A.

AU - Nemes, N.

AU - Garcia-Hernandez, M.

AU - Martinez, J. L.

AU - Santamaria, J.

N1 - Funding Information: Work supported by MCYT MAT 2005-06024.

PY - 2007/9

Y1 - 2007/9

N2 - We report large magnetoresistance in ferromagnet/superconductor/ferromagnet structures made of La0.7Ca0.3MnO3 and YBa2Cu3O7 at temperatures along the resistive transition. We find that the magnetoresistance phenomenon is independent on the orientation of electric current versus field. Furthermore, the effect is also independent on the sweep rate of the magnetic field. This excludes interpretations in terms of spontaneous vortices or anisotropic magnetoresistance of the ferromagnetic layers and supports the view that the magnetoresistance phenomenon originates at the spin-dependent transport of quasiparticles transmitted from the ferromagnetic electrodes into the superconductor.

AB - We report large magnetoresistance in ferromagnet/superconductor/ferromagnet structures made of La0.7Ca0.3MnO3 and YBa2Cu3O7 at temperatures along the resistive transition. We find that the magnetoresistance phenomenon is independent on the orientation of electric current versus field. Furthermore, the effect is also independent on the sweep rate of the magnetic field. This excludes interpretations in terms of spontaneous vortices or anisotropic magnetoresistance of the ferromagnetic layers and supports the view that the magnetoresistance phenomenon originates at the spin-dependent transport of quasiparticles transmitted from the ferromagnetic electrodes into the superconductor.

KW - Magnetoresistance-multilayers

KW - Multilayers-metallic

KW - Superconductivity-high T

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