Nonuniform superconducting state in superconductor/ferromagnet nanoscale layered system
Superconducting Nb/Ni bilayers, prepared by magnetron sputtering are investigated in the range of temperatures 1.3-10K. For specimens with constant Nb layer thickness a non- monotonic behavior of the critical temperature upon increasing of the Ni layer thickness with distinct oscillations of Tc(d...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2006
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/625a7180bd894d389a3afdd17a1b081c |
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| Sumario: | Superconducting Nb/Ni bilayers, prepared by magnetron sputtering are investigated in
the range of temperatures 1.3-10K. For specimens with constant Nb layer thickness a non-
monotonic behavior of the critical temperature upon increasing of the Ni layer thickness with
distinct oscillations of Tc(dNi) of the Ni layer is found. The results are interpreted in terms of
Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) inhomogeneous superconducting state in the
ferromagnetic Ni layer.
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