Origin of the Inverse spin-switch behavior in manganite/cuprate/manganite trilayers.
Abstract
We studied ferromagnet/superconductor/ferromagnet trilayers based on La{sub 0.7}Ca{sub 0.3}MnO{sub 3} manganite and YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) high-T{sub c} cuprate with magnetoresistance and magnetization measurements. We find an inverse superconducting spin-switch behavior, where superconductivity is favored for parallel alignment of the magnetization in the ferromagnetic layers. We argue that this inverse superconducting spin switch originates from the transmission of spin-polarized carriers into the superconductor. In this picture, the thickness dependence of the magnetoresistance yields the spin-diffusion length in YBCO as 13 nm. A comparison of bilayers and trilayers allows ruling out the effect of the stray fields of the domain structure of the ferromagnet as the source of the inverse superconducting spin switch.
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); Juan de la Cierva Fellowship; Marie-Curie IRG Grant
- OSTI Identifier:
- 965750
- Report Number(s):
- ANL/MSD/JA-60085
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US200920%%394
- DOE Contract Number:
- DE-AC02-06CH11357
- Resource Type:
- Journal Article
- Journal Name:
- Phys. Rev. Lett.
- Additional Journal Information:
- Journal Volume: 78; Journal Issue: 2008; Journal ID: ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 36 MATERIALS SCIENCE; LANTHANUM OXIDES; CALCIUM OXIDES; MANGANESE OXIDES; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; DOMAIN STRUCTURE; MAGNETIZATION; MAGNETORESISTANCE; SPIN; SUPERCONDUCTIVITY; ALIGNMENT
Citation Formats
Nemes, N M, Garcia-Hernandez, M, Visani, C, Garcia-Barriocanal, J, Pena, V, Arias, D, Sefrioui, Z, Leon, C, Santamaria, J, te Velthuis, S. G. E., Hoffmann, A, Materials Science Division, Inst. de Ciencia de Materiales de Madrid, and Univ. Complutense de Madrid. Origin of the Inverse spin-switch behavior in manganite/cuprate/manganite trilayers.. United States: N. p., 2008.
Web. doi:10.1103/PhysRevB.78.094515.
Nemes, N M, Garcia-Hernandez, M, Visani, C, Garcia-Barriocanal, J, Pena, V, Arias, D, Sefrioui, Z, Leon, C, Santamaria, J, te Velthuis, S. G. E., Hoffmann, A, Materials Science Division, Inst. de Ciencia de Materiales de Madrid, & Univ. Complutense de Madrid. Origin of the Inverse spin-switch behavior in manganite/cuprate/manganite trilayers.. United States. https://doi.org/10.1103/PhysRevB.78.094515
Nemes, N M, Garcia-Hernandez, M, Visani, C, Garcia-Barriocanal, J, Pena, V, Arias, D, Sefrioui, Z, Leon, C, Santamaria, J, te Velthuis, S. G. E., Hoffmann, A, Materials Science Division, Inst. de Ciencia de Materiales de Madrid, and Univ. Complutense de Madrid. 2008.
"Origin of the Inverse spin-switch behavior in manganite/cuprate/manganite trilayers.". United States. https://doi.org/10.1103/PhysRevB.78.094515.
@article{osti_965750,
title = {Origin of the Inverse spin-switch behavior in manganite/cuprate/manganite trilayers.},
author = {Nemes, N M and Garcia-Hernandez, M and Visani, C and Garcia-Barriocanal, J and Pena, V and Arias, D and Sefrioui, Z and Leon, C and Santamaria, J and te Velthuis, S. G. E. and Hoffmann, A and Materials Science Division and Inst. de Ciencia de Materiales de Madrid and Univ. Complutense de Madrid},
abstractNote = {We studied ferromagnet/superconductor/ferromagnet trilayers based on La{sub 0.7}Ca{sub 0.3}MnO{sub 3} manganite and YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) high-T{sub c} cuprate with magnetoresistance and magnetization measurements. We find an inverse superconducting spin-switch behavior, where superconductivity is favored for parallel alignment of the magnetization in the ferromagnetic layers. We argue that this inverse superconducting spin switch originates from the transmission of spin-polarized carriers into the superconductor. In this picture, the thickness dependence of the magnetoresistance yields the spin-diffusion length in YBCO as 13 nm. A comparison of bilayers and trilayers allows ruling out the effect of the stray fields of the domain structure of the ferromagnet as the source of the inverse superconducting spin switch.},
doi = {10.1103/PhysRevB.78.094515},
url = {https://www.osti.gov/biblio/965750},
journal = {Phys. Rev. Lett.},
issn = {0031-9007},
number = 2008,
volume = 78,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2008},
month = {Tue Jan 01 00:00:00 EST 2008}
}