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

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

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)63-69
Number of pages7
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Issue number1-2
StatePublished - 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.


  • Colossal magnetoresistance
  • Heterostructures
  • High temperature superconductors
  • Spin injection


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