Spin injection and the interfacial conductance of ferromagnet-superconductor oxide heterostructures

P. Kraus; A. Bhattacharya; K. Nikolaev; A. M. Goldman

doi:10.1016/S0921-5107(01)00571-2

Spin injection and the interfacial conductance of ferromagnet-superconductor oxide heterostructures

P. Kraus, A. Bhattacharya, K. Nikolaev, A. M. Goldman

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Bilayers of epitaxially compatible superconducting DyBa₂Cu₃O_7-x (DBCO) and ferromagnetic La_2/3Ba_1/3MnO₃ (LBMO) have been grown using molecular beam epitaxy. In contrast with other investigations there was no buffer layer separating the ferromagnetic and superconducting layers. Structures were patterned into mesas for vertical transport measurements. Electrical leads permitted simultaneous study of the interface conductance and the effect on superconductivity of carrier injection. Conductance measurements exhibited features consistent with several aspects of calculations of spin-polarized transport between ferromagnetic and superconducting layers.

Original language	English (US)
Pages (from-to)	63-69
Number of pages	7
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	84
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-5107(01)00571-2
State	Published - Jun 5 2001

Bibliographical note

Funding Information:
The authors would like to thank Professor Oriol Valls for helpful discussions. Dr Vlad Vas'ko contributed greatly to the early stages of this work. Support for this research was provided by the Office of Naval Research under Grant N/N00014-98-1-0098.

Keywords

Colossal magnetoresistance
Heterostructures
High temperature superconductors
Spin injection

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10.1016/S0921-5107(01)00571-2

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title = "Spin injection and the interfacial conductance of ferromagnet-superconductor oxide heterostructures",

abstract = "Bilayers of epitaxially compatible superconducting DyBa2Cu3O7-x (DBCO) and ferromagnetic La2/3Ba1/3MnO3 (LBMO) have been grown using molecular beam epitaxy. In contrast with other investigations there was no buffer layer separating the ferromagnetic and superconducting layers. Structures were patterned into mesas for vertical transport measurements. Electrical leads permitted simultaneous study of the interface conductance and the effect on superconductivity of carrier injection. Conductance measurements exhibited features consistent with several aspects of calculations of spin-polarized transport between ferromagnetic and superconducting layers.",

keywords = "Colossal magnetoresistance, Heterostructures, High temperature superconductors, Spin injection",

author = "P. Kraus and A. Bhattacharya and K. Nikolaev and Goldman, {A. M.}",

note = "Funding Information: The authors would like to thank Professor Oriol Valls for helpful discussions. Dr Vlad Vas'ko contributed greatly to the early stages of this work. Support for this research was provided by the Office of Naval Research under Grant N/N00014-98-1-0098.",

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AU - Kraus, P.

AU - Bhattacharya, A.

AU - Nikolaev, K.

AU - Goldman, A. M.

N1 - Funding Information: The authors would like to thank Professor Oriol Valls for helpful discussions. Dr Vlad Vas'ko contributed greatly to the early stages of this work. Support for this research was provided by the Office of Naval Research under Grant N/N00014-98-1-0098.

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Y1 - 2001/6/5

N2 - Bilayers of epitaxially compatible superconducting DyBa2Cu3O7-x (DBCO) and ferromagnetic La2/3Ba1/3MnO3 (LBMO) have been grown using molecular beam epitaxy. In contrast with other investigations there was no buffer layer separating the ferromagnetic and superconducting layers. Structures were patterned into mesas for vertical transport measurements. Electrical leads permitted simultaneous study of the interface conductance and the effect on superconductivity of carrier injection. Conductance measurements exhibited features consistent with several aspects of calculations of spin-polarized transport between ferromagnetic and superconducting layers.

AB - Bilayers of epitaxially compatible superconducting DyBa2Cu3O7-x (DBCO) and ferromagnetic La2/3Ba1/3MnO3 (LBMO) have been grown using molecular beam epitaxy. In contrast with other investigations there was no buffer layer separating the ferromagnetic and superconducting layers. Structures were patterned into mesas for vertical transport measurements. Electrical leads permitted simultaneous study of the interface conductance and the effect on superconductivity of carrier injection. Conductance measurements exhibited features consistent with several aspects of calculations of spin-polarized transport between ferromagnetic and superconducting layers.

KW - Colossal magnetoresistance

KW - Heterostructures

KW - High temperature superconductors

KW - Spin injection

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Spin injection and the interfacial conductance of ferromagnet-superconductor oxide heterostructures

Abstract

Bibliographical note

Keywords

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