Microwave study of magnetic field penetration parallel to thin niobium films (CROSBI ID 539280)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Grbić, Mihael Srđan ; Požek, Miroslav ; Janjušević, Dragan ; Dulčić, Antonije ; Paar, Dalibor ; Wagner, Thomas
engleski
Microwave study of magnetic field penetration parallel to thin niobium films
Complex conductivity of high quality niobium thin films has been investigated by microwave technique in parallel static magnetic field. Mechanism of microwave response substantially changes from ultra-thin to thick film regime. For the thinnest film no vortices can be formed and microwave penetration is defined by strength of superconducting order parameter which varies with applied magnetic field. The thickest film measured allows formation of several rows of vortices. Microwave disipation is dominated by dynamics of vortices which is strongly affected by size effects. Results have been compared with generalised models of complex conductivity for low – dimensional superconductor in mixed state following earlier considerations of other authors. Discussion of dynamical characteristics of vortices is given for measured samples.
films; superconducting; vortex
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Podaci o prilogu
2007.
objavljeno
Podaci o matičnoj publikaciji
Abstarcts of NMR, MRI, uSR and Moessbauer techniques training school, Pavia, Italy
Podaci o skupu
Nepoznat skup
poster
29.02.1904-29.02.2096