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Fragmentation of fast Josephson vortices and breakdown of ordered states by moving topological defects

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep17821· OSTI ID:1240261
 [1];  [2]
  1. Old Dominion Univ., Norfolk, VA (United States); Old Dominion University
  2. Old Dominion Univ., Norfolk, VA (United States)

Topological defects such as vortices, dislocations or domain walls define many important effects in superconductivity, superfluidity, magnetism, liquid crystals, and plasticity of solids. Here we address the breakdown of the topologically-protected stability of such defects driven by strong external forces. We focus on Josephson vortices that appear at planar weak links of suppressed superconductivity which have attracted much attention for electronic applications, new sources of THz radiation, and low-dissipative computing. Our numerical simulations show that a rapidly moving vortex driven by a constant current becomes unstable with respect to generation of vortex-antivortex pairs caused by Cherenkov radiation. As a result, vortices and antivortices become spatially separated and accumulate continuously on the opposite sides of an expanding dissipative domain. This effect is most pronounced in thin film edge Josephson junctions at low temperatures where a single vortex can switch the whole junction into a resistive state at currents well below the Josephson critical current. In conclusion, our work gives a new insight into instability of a moving topological defect which destroys global long-range order in a way that is remarkably similar to the crack propagation in solids.

Research Organization:
Old Dominion Univ. Research Foundation, Norfolk, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010081
OSTI ID:
1240261
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Vol. 5; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (40)

Design of a ballistic fluxon qubit readout journal October 2007
Nonlocal electrodynamics of Josephson vortices in superconducting circuits journal January 2009
Discrete model for DNA-promoter dynamics journal October 1991
Equation of motion for dislocations with inertial effects journal December 2007
Parametric amplification of vortex-antivortex pair generation in a Josephson junction journal October 2014
Dynamics of sine-Gordon solitons in the annular Josephson junction journal September 1992
Dynamics of a Ferromagnetic Domain Wall and the Barkhausen Effect journal December 1997
Supersonic Dislocation Kinetics from an Augmented Peierls Model journal January 2001
Flux Flow of Abrikosov-Josephson Vortices along Grain Boundaries in High-Temperature Superconductors journal February 2002
Superconducting Circuits for Quantum Information: An Outlook journal March 2013
Evidence for nonlocal electrodynamics in planar Josephson junctions text January 2013
Josephson vortex Cherenkov radiation text January 1994
Physics and Applications of the Josephson Effect book July 1982
Nonlocal interaction in Josephson junctions journal June 1990
Transition from slow Abrikosov to fast moving Josephson vortices in iron pnictide superconductors journal November 2012
Superconducting emitters of THz radiation journal August 2013
Remarkable effects of disorder on superconductivity of single atomic layers of lead on silicon journal April 2014
Commensurate–incommensurate transition in graphene on hexagonal boron nitride journal April 2014
Commensurate phases, incommensurate phases and the devil's staircase journal June 1982
Design of a ballistic fluxon qubit readout journal October 2007
Discrete model for DNA-promoter dynamics journal October 1991
Nonlinear viscous motion of vortices in Josephson contacts journal November 1993
Anisotropic flux pinning in a network of planar defects journal November 1994
Josephson-vortex Cherenkov radiation journal October 1995
Josephson junction in a thin film journal March 2001
Equation of motion for dislocations with inertial effects journal December 2007
Parametric amplification of vortex-antivortex pair generation in a Josephson junction journal October 2014
Evidence for Nonlocal Electrodynamics in Planar Josephson Junctions journal September 2013
Fluxon Readout of a Superconducting Qubit journal April 2014
Imaging Josephson Vortices on the Surface Superconductor Si ( 111 ) − ( 7 × 3 ) − In using a Scanning Tunneling Microscope journal December 2014
Ground State, Spectrum, and Phase Diagram of Two-Dimensional Incommensurate Crystals journal January 1979
Dynamics of sine-Gordon solitons in the annular Josephson junction journal September 1992
Dynamics of a Ferromagnetic Domain Wall and the Barkhausen Effect journal December 1997
Supersonic Dislocation Kinetics from an Augmented Peierls Model journal January 2001
Flux Flow of Abrikosov-Josephson Vortices along Grain Boundaries in High-Temperature Superconductors journal February 2002
The topological theory of defects in ordered media journal July 1979
Self-heating in normal metals and superconductors journal October 1987
The dynamics of charge-density waves journal October 1988
Vortices in high-temperature superconductors journal October 1994
Superconducting Radio-Frequency Fundamentals for Particle Accelerators journal January 2012

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Current-driven production of vortex-antivortex pairs in planar Josephson junction arrays and phase cracks in long-range order journal October 2018
Current driven transition from Abrikosov-Josephson to Josephson-like vortex in mesoscopic lateral S/S’/S superconducting weak links journal October 2016
Imaging of super-fast dynamics and flow instabilities of superconducting vortices text January 2017
Imaging of super-fast dynamics and flow instabilities of superconducting vortices journal July 2017
Theory of RF superconductivity for resonant cavities journal January 2017