StatusThe thesis was presented on the 18 September, 2006
Approved by NCAA on the 21 December, 2006
Abstract– 0.31 Mb / in romanian
– 0.33 Mb / in russian
1.83 Mb /
An original vacuum technology for reliable and reproducible preparation of high quality nanostructures “superconductor/ferromagnet” (S/F) using magnetron sputtering is developed.
Superconducting properties of Nb/Ni bilayers prepared by on atomic smooth glass subtrates are investigated. The quality of the films was characterized by small-angle X-ray diffraction analysis(XRD Θ-2Θ). The thickness of the layers was determined by the Rutherford backscattering spectrometry (RBS). For specimens with constant Nb layer thickness we observed distinct oscillations of the superconducting critical temperature upon increasing the thickness of the Ni layer. The results are interpreted in terms of Fulde-Ferrell-Larkin-Ovchinnikov (LOFF) like inhomogeneous superconducting pairing in the ferromagnetic Ni Layer.
The obtained results can be used for superconducting electronics and spintronics.
The thesis is written in Russian