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Irreversibility line in Nb/CuMn multilayers with a regular array of antidots

TitoloIrreversibility line in Nb/CuMn multilayers with a regular array of antidots
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2000
AutoriAttanasio, C., Di Luccio Tiziana, Mercaldo L.V., Prischepa S.L., Russo R., Salvato M., Maritato L., Barbanera S., and Tuissi A.
RivistaPhysical Review B - Condensed Matter and Materials Physics
Volume62
Paginazione14461-14468
ISSN01631829
Parole chiaveAnisotropy, article, electron beam, magnetic field, quantum mechanics, semiconductor, shear stress, Temperature measurement
Abstract

The transport properties of superconducting multilayers with a regular array of antidots obtained by electron-beam lithography have been measured at different temperatures in the presence of external perpendicular magnetic fields. Hysteresis in the I-V characteristics was observed, which disappears when approaching the upper critical magnetic field curve Hc2(T). By comparing these data with other results (Arrhenius plots of resistive transition curves, log V-log 1 characteristics) we have been able to relate the onset of the hysteresis to the presence of an irreversibility line. We discuss several possible mechanisms to clarify the nature of this line. Among them the most plausible seems to be vortex melting mainly induced by quantum fluctuations.

Note

cited By 7

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0034450813&doi=10.1103%2fPhysRevB.62.14461&partnerID=40&md5=463af439ed1a2db11200930f378572ab
DOI10.1103/PhysRevB.62.14461
Citation KeyAttanasio200014461