Riassunto
The International Symposium on Superconductivity, which has been held annu ally since 1988, is a forum for presenting the most up-to-date information about a broad range of research and development in superconductivity, from funda mental aspects to applications. More than 10 years have passed since the discovery of oxide superconductors and since various developments of applications began. It may be said that the prospects for application of oxide superconductors recently have opened up. Great progress has been made toward practical use, for example, of the flywheel, which uses bulk materials, and the high-performance cryo-cooled magnet made of bismuth wire. These were the results of persistent efforts to develop materials from the viewpoint of materials science and engineering. Also important is the progress in comprehensive understanding of high temperature superconductivity. Unique electronic properties of cuprates such as the non-Fermi liquid normal state, spin-charge separation, spin gap, and d-wave symmetry were discussed at the symposium, as were the unique electromagnetic properties resulting from the low dimensionality of cuprates. In the field of new superconductors, many exotic materials have been discovered since 1986. A decade of work with cuprate superconductors is reviewed in this proceedings, and several of the newest materials are presented. These papers will be instructive for many researchers and for students who are to enter this field.
Contenuti
1 Plenary Lectures.- *A Decade of high Temperature Superconducting Materials.- *System Applications of Superconductivity in Energy Field of Japan.- *Quasi-Particles Probed by Thermal Conductivity in Cuprates.- *ac Losses in High-Tc Materials.- 2 Physics.- 2.1 Transport and Physical Properties.- *Charge Stripes and Antiferromagnetism in Copper-Oxide Superconductors.- *How does the High-Tc Superconductivity Disappear by Overdoping? — A Scenario from a Neutron Scattering Study on La2-x SrxCuo4.- Direct Numerical Experiments on Superconducting Plasma and Intrinsic Josephson Effects in Layered High-Tc, Superconductors.- Anomaly in the Coupling Between Electromagnetic and Acoustic Waves in Bi2Sr2CaCuO8 Single Crystal.- Observation of Unconventional SQUID-Like Properties for Asymmetrical Bicrystal Josephson Junctions.- Hall Effect of Vortices Parallel to cuo2 Layers in Single Crystalline Bi-2212.- Quasiparticles and Vortex State of Layered Superconductors.- Temperature Dependence of Lower Critical Fields in a Single-Crystal Bi2Sr2CaCu2O8+? Bulk Superconductor.- Effect of Small Transport Currents on the Flux-Line Lattice Melting in Bi-2212 Crystal.- Critical Current Density and Irreversibility Field for pb-12(n-l)n (n = 3,4) Superconductors.- Frequency Dependence of the Complex Resistivity in the Vortex State.- Voltage-Noise Measurements in Dirty Superconducting Films.- On the Origin of Peak Effect in High-Tc Superconductors.- Double Sign Reversal of the Hall Effect in YBa2Cu3Ox Thin Films.- Vortex Correlation in BI2Sr2Ca1Cu2Ox Single Crystals with Columnar Defects.- Influence of Columnar Defects on the Reversible Magnetization of Bi2212.- Low Field Decoupling Transition in Some BSCCO Samples.- Effects of Heavy-Ion Irradiation on the Josephson Plasma Resonance in the Mixed State of Bi2Sr2CaCu2oy.- First-Order Vortex Lattice Melting Transition in Tilted Magnetic Fields in Bi2Sr2CaCu2O8+?.- Temperature Dependence of Collective Josephson Plasma Modes in Bi2Sr2CaCu2O8+?.- Anomalous Hysteretic Dielectric Polarization in C-Axis-Oriented La2-xSrxCuO4 Film.- Impurity (Ni, Zn) Effects on Resistive Broadening in YBa2Cu3Oy Crystals.- Magnetic Characteristics of the Superconducting TSFZ prBa2Cu3Oy Crystal.- Precise Measurements of Y2BaCuO?=5 Quantity in Y1.8Ba2.4Cu3.4Oy Heat Treated at High Temperatures.- Physical properties of prBa2-xCaxCu3o7-?.- Out-of-Plane Transport Properties of Bi2Sr2Ca(Cu1-xZnx)2O8-? Single Crystals.- Anisotropic Thermal Diffusivity of Untwinned Y-123 Single Crystal.- The Heat-Treatment Effect on the Magnetization Curves of Ndl23 Single Crystals.- Transport Properties of Bi2212 Single Crystal Under Uniaxial Stress.- Comparative Study on Electron-Density Distribution of Superconducting yBa2Cu3O6.9 and Non-Superconducting yBa2Cu3O6.0.- Effects of the Fermi Surface Topology in k-ET2X Materials.- Heat Capacity Measurements on Borocarbide Ho0.5Y0.5Ni2B2C.- Superconductor-Insulator Transition in Two-Dimensional a-MoxSi1-x Films.- Specific Heat Study on Magnetic Superconductor Ybpd2Sn.- Vortex Behavior in Bi-2212 Single Crystals for the Magnetic Field Parallel to the Cuo2 Planes.- 2.2 spectroscopy.- Microwave Absorption Study on YBa2.Cu3Oy /Mgo at Low Magnetic Fields.- Vortex Dynamics in Bulk High Temperature Superconductors Estimated by Microwave Absorption.- Tunneling spectroscopy of Bi2Sr2CuO6+y Under Magnetic Fields.- Esr Observations in Mn-Doped YBa2Cu3O7-? Superconductors.- Optical Studies of Zn Substitution and Overdoping Effects on in-Plane Anisotropy in YBa2Cu3O7-? Single Crystals.- Manifestation of Oxygen-Ordering Kinetics in Raman Spectra of YBa2Cu3O7-x Single Crystals.- Behavior of “Forbidden” Modes in Raman Spectra of Underdoped YBa2Cu3O7-x.- Phonon Raman Scattering in Nd1+x Ba2-x Cu3O7-? (-0.023? x ? 0.107).- Low Field Microwave Absorption Study on K3C60.- 2.3 Structure Studies.- Crystal Growth of prBa2Cu3O7-y.- Structural Differences of Superconducting and Non-Superconducting prBa2Cu3Ox Crystals.- Features of Crystal Structures in Sr1-xLaxVO3.- Features of Crystal Structures and Microstructures in Ceramic Samples of La1-xSrxMno3+?.- Modulated Structures in La2-xSrxMo4 (M = Ni, Mn).- Features of Crystal Structures in Ca2Ruo4.- 2.4 Theory.- *Spin-Charge Separation in High-Tc Cuprates — Illusion or Reality?.- Spatial Dependence of the Pair Potential of the Normal Metal d-Wave Superconductor Junction.- Exact Solutions of the Ginzburg-Landau Equation in the Elliptic Function Formalism.- Theoretical Study of the Josephson Current Through a Junction Including Ferromagnetic Insulator.- Pairing Symmetries of the Electron-Doped Systems of High-Tc Superconductors.- A Unified Description of Superconductivity and Antiferromagnetism Based on the Spinor Representation of So(5).- Langevin Simulation of Nonlocal Ginzburg-Landau Model for Superconductors in a Magmetic Field.- Local Density of States of the Quasiparticles in the Superconducting States of the Non-Uniform t-J Model.- SCR Theory for the Superconducting Fluctuations in Layered d-Wave Superconductors.- Competition of Superconductivity with SDW in 2d Hubbard Model — Strong Effect of next Nearest Neighbor Transfer Energy t’.- 3 Chemistry.- 3.1 New Materials and New Superconductors.- *Dramatically Improved Flux Pinning Properties of Heavily Pb-Doped Bi2212 Single Crystals and Ag Composite Tapes.- Two-Phase Microstructures in the Heavily Pb-Substituted Bi-2212 Single Crystals Serving as Efficient Pinning Centers.- Crystal Engineering for High-Tc Devices.- Chalcogenide Superconductors.- Preparation and Properties of RuSr2GdCu2Ox with the 1212 Structure.- Preparation of TLSr2Ca2Cu3Oy Under High Pressure.- New Oxycarbonate Superconductors CCa2Can-1Cuno2n+3+?(n =1,2) Synthesized Under High Pressure.- 3.2 Crystallinity, Oxygen Constant, and Carrier Doping.- *The Complex Nature of the [AO]? layer in the A(Ba,Sr)2Cam-1Cumo2m+3-?Superconductors.- Preparation and Characterization of YBa2Cu4O8 Single Crystal Grown in Y2O3 Crucible Using O2-HIP Apparatus.- Synthesis and Characterization of Strongly Over-doped HgBa2Ca2Cu3O8+? Samples.- Hole Doping Mechanism and Structural Changes in Cu(Ba0.8Sr0.2)2(Yb1-xCax)Cu2O6+z.- Superconductivity in Y1-x-yPrxCayBa2Cu2.85Re0.15 (y = 0.0 & 0.1; 0 < x < 0.5).- Effects of H2O on Crystal Structure and Superconductivity in (Y, Er, Gd, Sm)- Ba2Cu3Ox.- Effects of High-Valency Cation Doping in HgBa2Ca2Cu3Oy.- Crystal Structure of Sr1.9Nd1.1Cu2.1Nb0.9O8 and Sr2(Nd0.75Ce0 25)2Cu2NbO10 — Ba2YCu3O6+?-Related Compounds with NbO6 Octahedron.- Crystal Structure of High-Pressure-Synthesized New Compound (Hg,Tl)2Ba2Cu2CO3O8.- YSr2Cu3-xMxOy (M = Fe and Mo) Ceramics Studied by Photoemission.- Cleaning of the Bi2Sr2CaCu2Oy Single Crystal Surfaces Heated in Air.- 3.3 Syntheses and Phase Relations.- *Improvements in Crystal Growth and Crystal Homogeneity and its Impact on Physics.- *Polymerized Complex Synthesis of High-Temperature Superconducting Oxides.- Synthesis of Sr-Ca-Cu-O-Cl Compound with 0233-Type Structure.- TSFZ Growth of La2-xBa2CuO4 Single Crystals Under Varied Oxygen Partial Pressure.- High Pressure Synthesis of HgBa2(Sr,Ca)2Cu3O8 Superconductor.- Synthesis and Characterization of V- and Ti-Containing Hg-1212 Cuprates.- Fluorination of the Overdoped Tl-1223 Superconductor.- RE 123 Superconductors Prepared Using Sol-Gel-Derived Ba2Cu3O5+x Precursors.- Superconductivity in Laser Ablated LaBa2Cu3Oz Thin Films.- Crystal Structure Refinement of the Oxygen-rich RCuO2+?(R = Y and La) Delafossite by Neutron Diffraction.- 4 Flux Pinning.- 4.1 Flux Characterization.- *Vortex Lattice Melting in Bi2Sr2CaCu2O8+? Single Crystals — Insights from Scanning Hall Probe Microscopy.- *Regular Pinning Arrays.- Observation of Vortex Pattern in Bi-2212 Single Crystal Under Applied Transport Current and dc Magnetic Field.- Observation of Local Variations of Stress in Melt Grown NdBa2Cu3O7-x Superconductors around Nd4Ba2Cu2O10 Inclusions.- Magneto-Optical Characterization of Nd-Ba-Cu-O Bulk Superconductors.- Magnetic Field Dependence of Bitter Decoration Patterns in Bi-2212 Single Crystal.- Defect Study Along Au-Ion Traces in Bi2Sr2CaCu2Ox Single Crystal.- The Characteristics and Microstructure of Nd-Ba-Cu-O Superconductor Annealed at High-Temperatures.- 4.2 Flux Pinning and Flux Dynamics.- *Bose-Glass Vortex Phase and Pinning by Columnar Defects in HTSC Crystals.- *Phase Diagram in the Vortex State in YBa2Cu3Oy Single Crystals.- Vortex-Lattice Phase Transition in (La1-xSrx)2Cu3O4 Single Crystals — Universal Scaling of the Phase Transition Lines in HTSC.- Vortex-Lattice Phase Transition in the Quasi-Two Dimensional Organic Superconductor.- Vortex Lattice Melting in Untwinned Single Crystal YBa2Cu3O7 When Fields are Applied Parallel to CuO2 Plane.- Vortex Pinning and Irreversibility Line in Single Crystal YBa2Cu3O7 With Parallel Twin Boundaries.- Angular Dependence of Vortex Phase Diagram in Bi2Sr2CaCu2O8+y.- Guided Motion of Vortices in Planar Pinning Centers and Anisotropy of Nonlinear Transport Property.- Vortex Phase Diagram in Heavy-Ion Irradiated Bi2Sr2CaCu2O8+y Studied by Josephson Plasma Resonance.- Magnetic Properties of Ndl23 Irradiated by 5.8 GeV Pb-Ions.- Effect of High-Energy Heavy-Ion Irradiation on the Critical Current Density of Bi-2212 Single Crystals.- Enhancement of Critical Current Density of Bi2Sr2CaCu2Ox by Thermal Annealing After Neutron Irradiation.- Pinning Property of Nd-Ba-Cu-O Superconductors.- Flux Pinning of NdBa2Cu3O7-? Superconducting Films by Laser Ablation Method.- Separation of Photo-Electronic and Thermal Effects of Light Irradiation on Flux Flow in Bi Based Superconductor.- Flux Pinning Property in Y-123 Single Crystal.- Pinning Properties in Superconducting Pb-Bi Alloys.- Effect of distribution of flux pinning strength on irreversibility line and transition line.- Distribution of Critical Current Density in a Superconducting Bi-2223 Tape Wire.- Analysis of Pinning in NdBa2Cu3O7-? Superconductors.- Melting Transition in Bi-2212 Crystals in the Presence of Point and Columnar Defects.- Effect of Mgo Particles Addition on Flux Pinning Characteristic in Partial-Melting Proccessed Bi-2212 Bulk.- 4.3 Electromagnetic Properties.- Dependence of Irreversibility Field on the Thickness of Superconducting Layer.- Critical Current Densities and Irreversibility Fields of (B,C)(Sr,Ba)2Ca2Cu3O9 and Ba2Ca2Cu3O6(O2-y, Fy).- Comparative Study of the Irreversibility Line of the (Hg, Pb)-1223 Superconductor.- Irreversibility Field in Hg-1223 Grain Aligned Powders.- Peak Effect in Bi-2212 Single Crystal at Low Magnetic Field.- Reentrant Properties Due to the Peak Effect in Untwinned YBCO Single Crystals.- dc Magnetization Measurements on Bi2Sr2CaCu2O8+? Single Crystals with Columnar Defects.- Pulsed Field Magnetization of Sm-Ba-Cu-O.- Surface Quality Effects in Hysteretic Magnetization of YBa2Cu3O7-? Films.- Magnetization Enhancement and Relaxation in Bi2+xSr2-xCaCu2O8 (x =0 ?0.2) Crystals.- Interplay Between Pinning by Point Defects and Twin Planes in Oxygen Deficient YBa2Cu3Ox Crystals.- Effect of Oxygen Content on the Superconducting Properties of Nd1+xBa2Cu3O7+? (x = 0.0, 0.1, 0.2, 0.3, and 0.4).- Effect of Y and Gd Additions on the Jc-B Properties of (Nd,Sm,Eu)123 System.- Transport Properties in Y1Ba2Cu3O7-? Superconducting Thin Films Over Wide Range of Electric Field.- Temperature Dependence of the Magnetic Energy Losses in a (Bi,Pb)2Sr2Ca2Cu3O10-? High-Tc Superconductor.- Loss in QMG Processed Y-123 Superconductor Due to ac Current.- A Temperature and Field Dependence of the Differential Resistivity Measured on Sintered GdBa2Cu3O7-?.- 5 Wires, Tapes, and Bulk.- 5.1 YBCO Type Superconductors.- a.c. Transport Properties of Biaxially Textured YBCO Tapes Formed by IBAD Method.- Rapid Formation of YBa2Cu3OX Tape on Metallic Substrate by Continuous Chemical Vapor Deposition using Tetrahydrofuran Single Solution of ?-Diketonates.- Biaxially Aligned YBCO Film Tapes Fabricated by Inclined Substrate Pulsed Laser Deposition.- New Fabrication Method of High-Jc YBa2Cu3O7 Superconducting Films on Flexible Metallic Substrates.- Synthesis of Biaxially Aligned Y2O3 Buffer Layer Directly on Ni Tapes Through Electron the Beam Deposition.- Preparation of In-Plane Aligned YBCO Film on Textured Ag Tape.- Preparation of YBa2Cu3O7.?-Coated Conductor on Single Crystalline Oxide Fiber by Hot-Wall MOCVD.- YBa2Cu3O7.? Superconductors Coated by LPE Process on Flexible YSZ Fibers and Polycrystalline Tapes.- Preparation of Y123 Thick Films on Silver Substrates by Liquid Phase Epitaxy.- Critical Current Density and Flux Penetration Behavior of Y123 Lpe Thick Films.- *Properties of YBCO Permanent Magnets.- Effect of Microstmcture on Compressive Properties for Melt-Processed YBa2Cu3O7.?.- Dispersion and Morphologies of Silver in the Melt Grown YBa2Cu3O7-X.- The Large Domain Growth of an Ag-Doped RE-System Superconductor in Air.- Preparation and Superconducting Properties of Melt-Processed Ybco Bulk by Controlling Oxygen Partial Pressure.- “Large-Area Tem” Observation of the Distribution of Y-211 Particles in YBCO Superconductors Melt-Grown Under Varying Oxygen Pressure.- Fabrication of RBa2Cu3O7-y Composite Thick Films by the Thermal Plasma Method.- Effect of Prefiring Conditions on Crystallization of Y123 Films by Dipping-Pyrolysis Process.- Plastic Extrusion of YBa2Cu3O7-y-Ag Composite Superconduting Wires using Pyrophoric Synthetic Powder.- Measurement of the Frequency Dependence of the Electrical and Magnetic Properties of Ag-Doped YBaCuO Superconductor by the SRPM Method.- Coarsening of High Temperature Stable Phase Particles in the Re(Nd,Sm,Y)BaCuO Melt.- Crystal Growth and Y2BaCuO5 Segregation in Melt-Textured YBa2Cu3O7-y.- Growth of Y2O3-Y123 Phase in YBCO Superconductor.- Magnetic Property of REBaCuO-System Superconductors.- Seeded Melt Growth of Large LRE-Ba-Cu-O Bulk Superconductors.- Preparation of Filamentary Nd123 Superconductor by OCMG Method.- Preparation of c-Axis Oriented Nd-Ba-Cu-O Melt-Textured Bulk with Ag Addition.- Growth Mode Dependent Characteristics of Nd1+XBa2-XCu3OY Thick Film by Liquid Phase Epitaxy.- Fabrication of NdBa2Cu3O6+? Single Crystals by the SRL-CP Method.- Characterization and Possible Applications of the Nd2Ba1Cu3Oz Phase.- Nd1+XBa2-XCu3O7-d Single Crystals Flux-Grown At Various Undercoolings and Their Superconducting Properties.- Effect of Growth Temperature on Superconducting Properties of Nd-Ba-Cu-0.- Microstructural Control of Nd123 Bulk Superconductors by Initial Compositions.- Superconducting Properties of Melt-Grown Binary Mixed (SmxGd1-x)-Ba-Cu-O Superconductors.- Preparation of Large c-Axis Oriented Melt-Processed Sm-Ba-Cu-0 and Their Superconducting Properties.- 5.2 BACCO, TBCCO, and Other Type Superconductors.- *Developments of Bi2Sr2Ca1Cu2OX/Ag Tapes and Coils.- Development of Bi-2223 Multifilamentary Tapes for Power Cable.- The Effect of SC/Ag Ratio and Twisting in Multifilamentary Ag-Sheathed Bi(2223) Tapes.- Fabrication of Cold-Rolled Bi-2223/Ag Single- and Multifilamentary Tapes using (Bi,Pb)-2212 and CaCuO2 Precursors.- Effects of Microstructural Improvement on the Superconducting Properties of Bi2Sr2CaCu2Ox Multilayer Tapes.- In Situ Observation of Phase Changes in Bi2212 Superconducting Tapes by High Temperature X-Ray Diffraction.- Effect of Starting Materials on Microstructure and Property of Bi-2212/Ag Tapes.- Texture and Formation of (Bi,Pb)-2223 Phase in the Partial-Melting, Air-Cooling and Sintering Process.- Intragranular Critical Current Density From History Effect in Ag-Bi2223 Tape.- Magnetic Field Distributions in Screen-Printed Ag-Bi2223 Tapes with Various Shapes.- On the Weak and Strong Links in Silver-Sheathed (Bi,Pb)2Sr2Ca2Cu3O10 Superconductors.- Microstructures and Pinning Forces of Ag-Cu Alloy Sheathed Tapes.- Critical Current and Grain Connectivity in Silver-Sheathed Bi2223 Superconducting Tapes Prepared by Different Cooling Rate.- Measurment and Analysis of Angular Depen...
Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.
