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Resonant phase dyna...
Resonant phase dynamics in 0-π Sine–Gordon facets
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- Rotoli, G. (author)
- Università degli Studi della Campania Luigi Vanvitelli,University of Campania Luigi Vanvitelli
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- Stornaiuolo, D. (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Cedergren, Karin, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Leo, A. (author)
- Universita degli Studi di Salerno,University of Salerno
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- Bauch, Thilo, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lombardi, Floriana, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tafuri, F. (author)
- Università degli Studi della Campania Luigi Vanvitelli,University of Campania Luigi Vanvitelli
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(creator_code:org_t)
- 2014-09-07
- 2015
- English.
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In: Continuum Mechanics and Thermodynamics. - : Springer Science and Business Media LLC. - 0935-1175 .- 1432-0959. ; 27:4-5, s. 639-658
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Keyword
- Sine–Gordon equation
- Josephson effect
- Fluxons
Publication and Content Type
- art (subject category)
- ref (subject category)
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