Search for coupling in ferromagnetic/superconducting multilayers: Fe4N/NbN
| Autor: | C. H. Sowers, C. D. Potter, M. J. Conover, J. E. Mattson, S. D. Bader |
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| Rok vydání: | 1997 |
| Předmět: |
Coupling
Superconductivity Materials science Condensed matter physics Heterojunction Surfaces and Interfaces Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Microstructure Surfaces Coatings and Films Condensed Matter::Materials Science Ferromagnetism Sputtering Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons Thin film Critical field |
| Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 15:2793-2797 |
| ISSN: | 1520-8559 0734-2101 |
| DOI: | 10.1116/1.580825 |
| Popis: | Structural, magnetic, and superconducting properties of ferromagnetic/superconducting multilayers of Fe4N/NbN are examined. The onset of superconductivity occurs at NbN layer thickness of ∼100 A. Below this thickness ferromagnetism of the Fe4N layers is observed. Above this thickness superconductivity of the NbN is also observed, but there is no evidence for interlayer magnetic or superconductive coupling. The results are used in the formulation of guidelines for future searches of novel interlayer coupling phenomena. The superconducting critical field curves are reasonably well described within the framework of the theory for ferromagnetic/superconducting multilayers. |
| Databáze: | OpenAIRE |
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