Critical Currents in Superconductors

Proceedings of the 8th International Workshop

8th International Workshop

, Kitakyushu, Japan

, 27 – 29 May 1996

https://doi.org/10.1142/3278 | November 1996

Pages: 536

Edited by:
T Matsushita (Kyushu Inst of Tech, Japan) and
K Yamafuji (Kyushu Univ, Japan)

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ISBN: 978-981-4547-16-1 (ebook) USD 52.00 Add to cart

This workshop includes about 110 papers describing the flux pinning and related electromagnetic phenomena in superconductors. Various problems are argued on exotic properties of flux lines, flux dynamics, flux pinning mechanisms, critical current density and critical state phenomena in both high- and low-temperature superconductors.

Contents:

Overviews
Flux Lines, Phase Diagrams
Irreversibility Line, Flux Dynamics
Flux Spinning Properties, Artificial Pins
Bulk Materials, Tapes, Thin Films

Readership: Researchers and postgraduates students in high Tc superconductivity, condensed matter/solid state physics, applied physics, electrical & electronic engineering and materials science.

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CRITICAL CURRENTS IN SUPERCONDUCTORS: Proceedings of the 8th International Workshop

Pages:1–538

https://doi.org/10.1142/9789814530538

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The Table of Contents for the full book PDF is as follows:

Editors’ Foreword
OVERVIEWS
- Structure of Vortex Arrays by Magnetic Decoration
- Observation of Vortices in Superconductors
- Observation of Flux Lines Using Small Angle Neutron Scattering
- The Effect of Anisotropy on the Phase Transitions in BSCCO
- Position and Nature of the Vortex Phase Transition in Anisotropic and Layered Superconductors
- Effect of Carrier Doping on Irreversibility and Melting Lines in Bi2212 Single Crystals
- Transport Characteristics in High T_c Superconductors with Pin Fluctuation under the Influence of Thermal Agitation
- Local Electrodynamics in Heavy Ion Irradiated BSCCO
- Fast Neutron Irradiation Effects on J_c in Tl-Based High Temperature Superconductors
- Flux Pinning in the OCMG-Processed LRE-123
- Flux Pinning Mechanism of Artificially Introduced Nb into Superconducting Nb-Ti
- Current Limiting Mechanisms and Phase Formation in Bi,Pb(2223) Tapes
- Flux Pinning and Critical Current Density of Ag-Clad Bi-2212 Superconducting Tapes
- Critical Current Densities of High Performance Bi-Based Superconducting Composite Wires in Magnetic Field
- Characteristics of Grain Boundaries in YBCO and BSCCO-2212 Lying in the Low Angle to High Angle Crossover Regime
- Preparation and Properties of Tl-Based Superconducting Thin Films
- Fabrication of Y-123 Tapes with High Critical Current Densities
- YBaCuO Thick Films on Planar and Curved Technical Substrates
FLUX LINES, PHASE DIAGRAMS
- Vortex Structure in BSCCO(2212) Single Crystal versus the Magnetic Flux Penetration Temperatures
- Evidence for the Dynamic Reconstruction of the Flux-Line Lattice in YBa₂Cu₃O_7–δ
- Bitter Decoration Pattern of Twinned YBaCuO Superconductor
- Magneto-Optical Observation of Flux Penetration into Twinned and Untwinned YBa₂Cu₃O₇
- Magnetic Structure of Flux Line Lattice
- Simulation of the Vortex Lattice in Superconducting Thin Films
- Monte Carlo Simulation of B-T Phase Diagrams in a Model High-T_c Superconductors
- Vertical Crossovers and Transitions in the H-T Phase Diagram of Bi₂Sr₂CaCu₂O_8+δ
- Study on the Relationship between the Peak Effect and the Flux Line Lattice Melting of Single Crystalline Bi₂Sr₂CaCu₂O_8+δ
- Transport Measurements on Bi₂Sr₂CaCu₂O_8+δ Single Crystals with Columnar Defects
- Bose-Glass Transition at the Irreversibility Line of YBaCuO Films Investigated by Third Harmonic AC-Susceptibility
- Universal Behavior in Scaling Property of Current-Voltage Characteristics of Polycrystalline High-T_c Superconductors
- Current-Voltage Characteristics in Superconducting Bi-2212 Tapes
- Size-Effects in Flow of Flux-Line Liquids
- Longitudinal Elastic Correlation Length of Flux Lines along the c-Axis in Bi-2212 Single Crystal
IRREVERSIBILITY LINE, FLUX DYNAMICS
- Flux Creep, Bulk Pinning and Edge Barriers in BSCCO 2212 Single Crystals
- Thickness Dependence of Pinning Properties in Sputtered YBa₂Cu₃O_y Thin Films
- Irreversibility Field and Flux Pinning for YBa₂Cu₃O₇ Films
- Dependence of the Pinning Characteristics on Fabrication Technique in YBa₂Cu₃O_7–δ Thin Films
- Current Voltage Characteristics of YBCO in Wide Range of Electric Fields
- A Comparison of the Vortex Dynamics in a Series of Oxygen-Deficient RBa₂Cu₃O_7–δ Crystals
- Anomalous Vortex Behaviour in (RE)Ba₂Cu₃Cu₃O_7–δ Crystals
- Comparative Study of Magnetization and Relaxation in YbBa₂Cu₃O_7–δ Single Crystals
- Flux Creep Measurements on Hg-1223 Ceramics
- Large-Scale Correlated Vortex Motion in a Detwinned YBa₂Cu₃O_7–δ Single Crystal
- Single Vortex Dynamics in Periodic Pinning Potentials
- Comparison of Vortex Dynamics at DC and Microwave Frequencies in High Quality HTS Thin Films
- Phase Diagram and “Abnormal” Irreversible Phenomena in Rf-Absorption of Weakly Linked Medium of Hg_{1 – x}Pb_xBa₂Ca₂Cu₃O_y
- Frequency and Amplitude Dependence of the Imaginary Part of AC Susceptibility Peak in High-T_c Superconductors
- Heavy Ion Irradiation Effects on Magnetic Field Dependent Rf Losses in Bi2212 Single Crystals
- Microwave Excitation of Longitudinal Josephson Plasma in Bi₂Sr₂CaCu₂O_8+δ
- Microwave Response of Vortex Dynamics in Bi2212 Single Crystals
- Surface-Barrier Dominating Magnetization of Re-Doped HgBa₂Ca₂Cu₃O_8+x Superconductors
- Surface Morphology and Critical Currents of Vicinal Y₁Ba₂Cu₃O_7–δ Films
- Role of Giant Flux Jumps in Failure of Textured YBaCuO in the Strong Magnetic Field
- Anisotropic Field Percolation and High Current Density in 2212 Bi-Based Substituted with Dy Bulk Magnetically Textured Composite Ceramics
- Angular Dependence of Magnetoresistance in YBCO Thin Films and YBCO/PBCO Multilayers
- Numerical Analysis of the Behaviors of Fluxoids in Type II Superconductor Based on the Fluxoid Dynamics Method Combined with the Ginzburg-Landau Theory
- Hysteresis of I-V Characteristics along the c-Axis in (110)-Oriented YBa₂Cu₃O_7–δ Thin Films
- Excess Flux Flow Voltage by Ultrasound in Superconducting Thin Films
- Contactless Study of the Critical Current Anisotropy in High-T_c Superconductors
- V-I Curves and J_c(B) Analysis for Ag Sheathed Bi-2223 Tapes
- Dynamics of the Force-Free Current Configurations
- Effect of Crossed Flux on Magnetization and Magnetization Dynamics in Melt-Textured Y₁Ba₂Cu₃O_7–x
- Influence of Weak Visible Light on Flux Creep and Critical Currents in YBCO Film
- Diffusion Velocity of Magnetic Fields of Intense Electron Beams through Bi-Based Sintered Superconducting Tubes
- Nernst Effect in YBa₂Cu₃O_7–δ and Bi_2.1Sr_1.8Ca₁Cu₂O_8+δ
- Resistive Transition of Superconducting Nb-Ti
- Scaling Law for Hysteresis Losses in Nb₃Sn Multifilamentary Composite
FLUX PINNING PROPERTIES, ARTIFICIAL PINS
- A Dual Character of Twin Boundaries in YBa₂Cu₃O₇ Single Crystal
- Twin Boundary-Induced Locked and Kinked Vortex States in YBa₂Cu₃O_7–δ Single Crystals
- Effect of Twin Boundaries on Vortex Pinning and Peak Effect in YBa₂Cu₃O_7–x Single Crystals
- The Role of Twins in High-T_c Superconductors: Are Twins Pinning Sites or Weak Links?
- The Saturation Effect and Decrease of Irreversibility Field in Neutron Irradiated YBa₂Cu₃O_7–δ Single Crystals
- Surface Implantation of 235 MeV Au Ions on Melt-Textured YBCO
- Heavy Ion Irradiation Effect for Ag-Sheathed Bi-2223 Tape
- Enhancement of Creep Activation Barriers in Y₁Ba₂Cu₃O_7–δ Films after Heavy Ion Irradiation
- Irradiation Effects on the Critical Currents in Tl-2212 and Tl-2223 Thin Films
- Development of the Current Peak in Dependence on Temperature and Oxygen Content
- High-Field Studies on Peak Effect of Quench-Melt-Growth Processed YBa₂Cu₃O₇
- Matching Peaks Observed in La214 Single Crystals with Extended Defect Structure
- Correlated vs Random Disorder in YBa₂Cu₃O_7–x Single Crystals
- Intrinsic Pinning in YBa₂Cu₃O_7–x
- In-Plane Anisotropy of the Critical Current and Remanent Magnetization in the Twin-Free YBa₂Cu₃O_7–δ Single Crystals
- Irreversible Behavior in the Vicinity of B ∥ a, b in YBa₂Cu₃O_7–δ Single Crystals
- Anisotropic Magnetic Properties of Nd123 Bulk Superconductors
- Flux Pinning in YBa₂Cu₄O₈ Single Crystals
- c-Axis Coupling and the Role of Oxygen Content in TmBa₂Cu₃O_y Single Crystals
- Correlated Disorder and Scaling in Single Crystals of BSCCO 2212
- Anomalous Angular Critical Current Dependences in Superconducting Multilayered Structures
- Critical Currents in Artificial Multilayers
BULK MATERIALS, TAPES, THIN FILMS
- Effect of J_c-B Characteristics on the Trapped Field Distribution of YBCO Bulk Magnets
- Preparation and Characterization of High J_c Y-Ho-Ba-Cu-O Bulk Superconductors by a Powder Melting Process
- Irreversibility Fields above 13 T at 77 K in NdBa₂Cu₃O_7–δ
- Irreversibility Line in the Melt-Processed NdBa₂Cu₃O_y Bulk Superconductors
- Effect of Heat-Treatment on the Pinning Properties of Melt-Textured RE123
- Critical Currents of Laser-Ablated Epitaxial Thin and Ultrathin YBCO Films
- Critical Current Density and Magnetic Shielding Effect of Bi-2223 Plate
- Microstructure Dependence of Transport Critical Current of Ag/Bi2223 Tapes
- Irreversible Intergranular Critical Current in Bi-2223 Superconducting Tapes
- Intergranular and Intragranular Critical Currents in Bi-2223 Superconducting Tapes
- Processing Related Issues on the Enhancement of Critical Current Density of Bi(Pb)-2223/Ag Multifilamentary Tapes
- Critical Currents at Elevated Fields in Ag/BSCCO Tapes
- Effect of Doping on Superconducting Properties of Bi-2223 Superconductors
- Evaluation of J_c-Distribution of Long Ag/Bi Wire from d²E/dJ² Curve
- The Exponential Field Dependence of the Magnetic and Transport Current Densities in (Bi_2–x, Pb_x)Sr₂Ca₂Cu₃O_10–δ/Ag Tapes
- Current-Voltage Characteristics of BSCCO Conductors
- The Effect of Mechanical Deformation on Critical Current Density of Bi-Based Ag-Clad Superconducting Tapes
- Limits to the Magnetic Field Dependencies of Transport Critical Currents for Silver-Sheathed Bi-2223 Superconducting Tape
- J_c-B-T Surfaces of Ag-Clad Bi-Based Tapes
- Current Distributions in Multilayered Bi-2223/Ag Conductors
- Anomalous I_c-B Hysteresis for Bi-2212/Ag Tape above 19T
- Well-Defined Grain Boundary Weak-Links in Tl-1223 Tapes
- Modified Dislocation Model of Tilt Intergrain Boundaries in HTSC
- Intrinsic Critical Current and Vortex Loop Pinning in Three Dimensional Disordered Josephson-Junction Array Model
- Effect of Heat Treatment on the J_c Values in Industrial Scale Multifilamentary Nb46.5wt%Ti Superconductors
List of Participants
Author Index