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Title: Peak effect due to competing vortex ground states in superconductors with large inclusions

Journal Article · · Physical Review B

Superconductors can support large dissipation-free electrical currents only if vortex lines are effectively immobilized by material defects. Macroscopic critical currents depend on elemental interactions of vortices with individual pinning centers. Pinning mechanisms are nontrivial for large-size defects such as self-assembled nanoparticles. We investigate the problem of a vortex system interacting with an isolated defect using time-dependent Ginzburg-Landau simulations. In particular, we study the instability-limited depinning process and extract the dependence of the pin-breaking force on inclusion size and anisotropy for an isolated vortex line. In the case of a vortex lattice interacting with a large isolated defect, we find a series of first-order phase transitions at well-defined magnetic fields, when the number of vortex lines occupying the inclusion changes. The pin-breaking force has sharp local minima at those fields. As a consequence, in the case of isolated identical large-size defects, the field dependence of the critical current is composed of a series of peaks located in between the occupation-number transition points.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division; USDOE Office of Science - Office of Advanced Scientific Computing Research - Scientific Discovery through Advanced Computing (SciDAC); Swiss National Science Foundation (SNSF)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1473624
Journal Information:
Physical Review B, Vol. 98, Issue 5; ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

References (58)

The effects of density and size of BaMO 3 (M=Zr, Nb, Sn) nanoparticles on the vortex glassy and liquid phase in (Y,Gd)Ba 2 Cu 3 O y coated conductors journal January 2013
Mixed pinning landscape in nanoparticle-introduced YGdBa2Cu3Oy films grown by metal organic deposition journal May 2011
Flux pinning and creep in very anistropic high temperature superconductors journal June 1990
Pinning in layered inhomogeneous superconductors journal April 1991
Theory and simulations on strong pinning of vortex lines by nanoparticles journal September 2011
Tuning nanoparticle size for enhanced functionality in perovskite thin films deposited by metal organic deposition journal November 2017
Influence of random point defects introduced by proton irradiation on the flux creep rates and magnetic field dependence of the critical current density J c of co-evaporated GdBa 2 Cu 3 O 7− δ coated conductors journal October 2015
Elastic and plastic properties of the flux-line lattice in type-II superconductors journal November 1986
The flux-line lattice in superconductors journal November 1995
Pinning size effects in critical currents of superconducting films journal August 2007
Campbell Response in Type-II Superconductors under Strong Pinning Conditions journal November 2015
High-Performance High-Tc Superconducting Wires journal March 2006
Vortices in high-temperature superconductors journal October 1994
Strong flux pinning in YBa 2 Cu 3 O 7−δ thin films due to nanometer-sized precipitates journal October 2008
High critical currents in heavily doped (Gd,Y)Ba2Cu3Ox superconductor tapes journal January 2015
Irradiation-free, columnar defects comprised of self-assembled nanodots and nanorods resulting in strongly enhanced flux-pinning in YBa2Cu3O7−δ films journal October 2005
Creep of Driven Flux Lines in Type-II Superconductors journal February 2010
Materials design for artificial pinning centres in superconductor PLD coated conductors journal November 2017
Vortex dynamics in type-II superconductors under strong pinning conditions journal October 2017
Dynamic Phases and the Peak Effect in Dirty Type II Superconductors journal March 2000
Weak to Strong Pinning Crossover journal February 2004
Probing the pinning landscape in type-II superconductors via Campbell penetration depth journal February 2016
In silico optimization of critical currents in superconductors journal July 2017
Evidence for strong flux pinning by small, dense nanoprecipitates in a Sm-doped YBa2Cu3O7−δ coated conductor journal May 2006
Strong isotropic flux pinning in solution-derived YBa2Cu3O7−x nanocomposite superconductor films journal April 2007
C -axis correlated pinning mechanism in vortex liquid and solid phases for Sm123 film with well-aligned BaHfO 3 nanorods journal October 2017
Relaxation dynamics in type-II superconductors with point-like and correlated disorder journal May 2013
Systematic enhancement of in-field critical current density with rare-earth ion size variance in superconducting rare-earth barium cuprate films journal June 2004
Artificial pinning center technology to enhance vortex pinning in YBCO coated conductors journal December 2009
Vortices in high-performance high-temperature superconductors journal September 2016
Dynamic Melting of the Vortex Lattice journal December 1994
Effect of particle size on the flux pinning properties of YBa 2 Cu 3 O 7– δ thin films containing fine Y 2 O 3 nanoprecipitates journal April 2016
Rapid doubling of the critical current of YBa2Cu3O7−δ coated conductors for viable high-speed industrial processing journal November 2015
Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model journal February 2016
Challenges and Opportunities for Applications of Unconventional Superconductors journal March 2014
Computer simulation of vortex pinning in type II superconductors. II. Random point pins journal October 1983
Computer simulation of vortex pinning in type II superconductors. I. Two-dimensional simulation journal October 1983
Dynamical Aspects of Strong Pinning of Magnetic Vortices in Type-II Superconductors journal May 2012
Pinning in type II superconductors journal February 1979
Coated conductors for power applications: materials challenges journal March 2014
Unified theory of effects of vortex pinning and flux creep upon the rf surface impedance of type-II superconductors journal July 1991
Stable large-scale solver for Ginzburg–Landau equations for superconductors journal August 2015
Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped BaFe 2 As 2 journal September 2012
Critical current density and vortex dynamics in pristine and proton-irradiated Ba 0.6 K 0.4 Fe 2 As 2 journal June 2015
Lattice deformations and plastic flow through bottlenecks in a two-dimensional model for flux pinning in type-II superconductors journal April 1988
Time-dependent Ginzburg-Landau simulations of the voltage-current characteristic of type-II superconductors with pinning journal February 2002
Strong-pinning regimes by spherical inclusions in anisotropic type-II superconductors journal November 2017
Elastic energy of the vortex state in type II superconductors. I. High inductions journal March 1977
Elastic energy of the vortex state in type II superconductors. II. Low inductions journal March 1977
Depinning and Creep Motion in Glass States of Flux Lines journal June 2007
High-field critical current enhancement by irradiation induced correlated and random defects in (Ba 0.6 K 0.4 )Fe 2 As 2 journal November 2013
Doubling the critical current density of high temperature superconducting coated conductors through proton irradiation journal September 2013
Campbell penetration in the critical state of type-II superconductors journal October 2015
Ultra-high flux pinning properties of BaMO 3 -doped YBa 2 Cu 3 O 7− x thin films (M = Zr, Sn) journal February 2008
Toward Superconducting Critical Current by Design journal March 2016
Addition of nanoparticle dispersions to enhance flux pinning of the YBa2Cu3O7-x superconductor journal August 2004
Thickness dependence of magnetic relaxation and E-J characteristics in superconducting (Gd-Y)-Ba-Cu-O films with strong vortex pinning journal July 2011
Simulation of the Vortex Dynamics in a Real Pinning Landscape of YBa 2 Cu 3 O 7 δ Coated Conductors journal January 2016

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