Resonant phase dynamics in 0-π Sine–Gordon facets

Rotoli, G.Università degli Studi della Campania Luigi Vanvitelli,University of Campania Luigi Vanvitelli (författare)

A locally phase-shifted Sine–Gordon model well accounts for the phenomenology of unconventional Josephson junctions. The phase dynamics shows resonant modes similar to Fiske modes that appear both in the presence and in the absence of the external magnetic field in standard junctions. In the latter case, they are also in competition with zero field propagation of Sine–Gordon solitons, i.e., fluxons, which give rise to the so-called zero field steps in the current–voltage (I–V) of the junction. We numerically study the I–V characteristics and the resonances magnetic field patterns for some different faceting configurations, in various dissipative regimes, as a function of temperature. The simulated dynamics of the phase is analyzed for lower-order resonances. We give evidence of a nontrivial dynamics due to the interaction of propagating fluxons with localized semifluxons. Numerical results are compared with experimental outcomes obtained on high-quality high-Tc grain boundary YBCO junctions.

Stornaiuolo, D.Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II (författare)
Cedergren, Karin,1975Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)karince (författare)
Leo, A.Universita degli Studi di Salerno,University of Salerno (författare)
Bauch, Thilo,1972Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bauch (författare)
Lombardi, Floriana,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lombardi (författare)
Tafuri, F.Università degli Studi della Campania Luigi Vanvitelli,University of Campania Luigi Vanvitelli (författare)
Università degli Studi della Campania Luigi VanvitelliUniversita Degli Studi Di Napoli Federico Ii (creator_code:org_t)

Ingår i:Continuum Mechanics and Thermodynamics: Springer Science and Business Media LLC27:4-5, s. 639-6580935-11751432-0959

Av författaren/redakt...: Rotoli, G.; Stornaiuolo, D.; Cedergren, Karin ...; Leo, A.; Bauch, Thilo, 19 ...; Lombardi, Floria ...; visa fler...; Tafuri, F.; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.