Vortex lattice melting in perforated Nb/(Cu-Mn) multilayers

TitleVortex lattice melting in perforated Nb/(Cu-Mn) multilayers
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2000
AuthorsAttanasio, C., Di Luccio Tiziana, Mercaldo L.V., Prischepa S.L., Russo R., Salvato M., Maritato L., and Barbanera S.
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties

We report the results of transport measurements in perforated superconducting (Nb)-spin-glass (Cu-Mn) multilayers. Current-voltage (I-V) characteristics were measured as a function of the temperature T, magnetic field H and sample anisotropy γ0. The noise and the hysteresis in the I-V curves were observed only for certain values of temperature and magnetic field, dependent on the anisotropy value. Outside these values both the noise and the hysteresis melting of the vortex lattice seems to be the most appropriate in describing the experimental data. The dynamic phase diagram is reproduced for samples with different anisotropies.


cited By 4; Conference of International Workshop on Semiconducting and Superconducting Materials ; Conference Date: 1 February 1999 Through 1 February 1999; Conference Code:60294