"We study the dynamics of vortex lines in Supercondutor\/Ferromagnet\/Superconductor (SFS) heterostruc-. tures at microwave frequencies. We have employed swept-frequency, Corbino-disk and resonant, dielec-. tric-resonator techniques to obtain the field and temperature dependence of the vortex-state parameters.. We concentrate here on the genuine flux-flow resistivity qff, that we access at subcritical currents using a. sufficiently high driving frequency. We find that qff does not follow the well-known Bardeen–Stephen. model. Instead, it is well described by a full time-dependent Ginzburg–Landau expression at very thin. F layer thickness, but changes to a previously unreported field-dependence when the F layer exceeds a. few nm.. "
Torokhtii, K., Attanasio, C., Cirillo, C., Ilyina, E.A., Pompeo, N., Sarti, S., et al. (2012). Vortex motion in Nb/PdNi/Nb trilayers: new aspects in the flux flow state. PHYSICA. C, SUPERCONDUCTIVITY, 479, 140-142 [10.1016/j.physc.2011.12.011].
Vortex motion in Nb/PdNi/Nb trilayers: new aspects in the flux flow state
TOROKHTII, KOSTIANTYN;POMPEO, NICOLA;SILVA, Enrico
2012-01-01
Abstract
"We study the dynamics of vortex lines in Supercondutor\/Ferromagnet\/Superconductor (SFS) heterostruc-. tures at microwave frequencies. We have employed swept-frequency, Corbino-disk and resonant, dielec-. tric-resonator techniques to obtain the field and temperature dependence of the vortex-state parameters.. We concentrate here on the genuine flux-flow resistivity qff, that we access at subcritical currents using a. sufficiently high driving frequency. We find that qff does not follow the well-known Bardeen–Stephen. model. Instead, it is well described by a full time-dependent Ginzburg–Landau expression at very thin. F layer thickness, but changes to a previously unreported field-dependence when the F layer exceeds a. few nm.. "I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
