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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Resistive transition in frustrated Josephson-junction arrays on a honeycomb lattice

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Granato, Enzo [1]
Total Authors: 1
[1] Inst Nacl Pesquisas Espaciais, Lab Associado Sensores & Mat, BR-12227010 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Physical Review B; v. 87, n. 9 MAR 21 2013.
Web of Science Citations: 10

We use driven Monte Carlo dynamics to study the resistive behavior of superconducting Josephson-junction arrays on a honeycomb lattice in a magnetic field corresponding to f flux quantum per plaquette. While for f = 1/3 the onset of zero resistance is found at nonzero temperature; for f = 1/2 the results are consistent with a transition scenario where the critical temperature vanishes and the linear resistivity shows thermally activated behavior. We determine the thermal critical exponent of the zero-temperature transition for f = 1/2 from a dynamic scaling analysis of the nonlinear resistivity. The resistive behavior agrees with recent results obtained for the phase-coherence transition from correlation-length calculations and with experimental observations on ultrathin superconducting films with a triangular pattern of nanoholes. DOI: 10.1103/PhysRevB.87.094517 (AU)

FAPESP's process: 07/08492-9 - Dynamics, topological defects and phase transitions in ordered media
Grantee:Enzo Granato
Support type: Research Projects - Thematic Grants