An array of resistively and capacitively shunted Josephson junctions with nonsinusoidal currentphase relation is considered for modelling the resistive transition in high-Tc superconductors. The emergence of higher harmonics, besides the sinusoid Ic sin φ, is expected for dominant d-wave symmetry of the Cooper pairs, random distribution of potential drops and dirty grains, or in nonstationary conditions. We show that additional cosine term acts by modulating the global resistance, due to the weak-links whose transition occurs through mixed superconductive-normal states.

Resistively and capacitively shunted Josephson junctions model for unconventional superconductors / Ponta, LINDA MADDALENA; Carbone, ANNA FILOMENA; Gilli, Marco; Mazzetti, Piero. - ELETTRONICO. - (2011), pp. 644-647. (Intervento presentato al convegno 24th Canadian Conference on Electrical and Computer Engineering (CCECE) tenutosi a Niagara Falls, ON (CAN) nel 8-11 May 2011) [10.1109/CCECE.2011.6030531].

Resistively and capacitively shunted Josephson junctions model for unconventional superconductors

PONTA, LINDA MADDALENA;CARBONE, ANNA FILOMENA;GILLI, MARCO;MAZZETTI, Piero
2011

Abstract

An array of resistively and capacitively shunted Josephson junctions with nonsinusoidal currentphase relation is considered for modelling the resistive transition in high-Tc superconductors. The emergence of higher harmonics, besides the sinusoid Ic sin φ, is expected for dominant d-wave symmetry of the Cooper pairs, random distribution of potential drops and dirty grains, or in nonstationary conditions. We show that additional cosine term acts by modulating the global resistance, due to the weak-links whose transition occurs through mixed superconductive-normal states.
2011
9781424497881
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2498781