Advances in Superconductivity XI
Proceedings of the 11th International Symposium on Superconductivity (ISS ’98), November 16 – 19, 1998, Fukuoka
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Chapter and Conference Paper
Nonlocal Electrodynamics in Bi2Sr2CaCu2O8+δ Single Crystal in a Corbino Disk Geometry
Electrical transport measurements in Bi2Sr2CaCu2O8+δ single crystal have been made using a Corbino disk geometry with current applied between center of disk and its perimeter and voltage response measured across ...
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Chapter and Conference Paper
Magnetic Field Dependence of Jc in NdBa2Cu3O7-δ Single Crystals Grown Under Various Partial Oxygen Pressures
NdBa2Cu3O7-δ (Nd123) single crystals were grown by the horizontal-Bridgman like method under various partial O2 pressures (0.03~ 3%) in Ar atmosphere. This work revealed that the peak effect disappears around 0.0...
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Chapter and Conference Paper
Montgomery Type Analysis for the Anisotropic Resistivity of Bi2Sr2CaCu2Ox Below and Above T c
Multi-terminal measurements were performed for a Bi2Sr2CaCu2O single crystal, and the Montgomery type analysis was applied. It edgave the consistent results in the normal state, but did not below T ...
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Chapter and Conference Paper
Transport Characteristics in YBCO Thin Film Superconductors
We studied influences of growth temperature on superconducting characteristics in YBa2Cu3O7-x (YBCO) thin films prepared by pulsed laser deposition (PLD). The films deposited at low growth temperature (below 730°...
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Chapter and Conference Paper
Improvement of Irreversibility Field by Ca Substitution in Nd123 Single Crystals
The field dependence of J c is studied for Nd1-x Ca x Ba2Cu3O7-δ [(x =0, 0.01, 0.02, 0.05, 0.10): N(C)BCO] single crystals grown by the traveling ...
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Book and Conference Proceedings
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Chapter and Conference Paper
Critical Current Density of Y123 Bicrystal Films Grown by LPE Method
We succeeded to produce Y123 bicrystal films with straight grain boundaries (GBs) on the MgO bicrystal substrates with several misorientation angles by LPE method. TEM images show that the GBs had straight fac...
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Chapter and Conference Paper
The LPE Growth of Iron Garnet Films for Magnetic Flux Density Observation
As an imaging sensor of magnetic flux in high-Tc superconductors, NdxLu3-xFe5O12 and PrxLu3-xFe5O12 films (Nd-LIG, Pr-LIG) were synthesized by LPE method. All films have large in-plain anisotropy and Ku of Pr-LIG...
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Chapter and Conference Paper
Electrical Properties under Magnetic Field of YBa2Cu3O x Films Grown by Liquid Phase Epitaxy Method
We prepared YBa2Cu3O x films on seeded MgO (100) substrates by liquid phase epitaxy method. The full width at half maximum of the rocking curve through the (005) reflection redu...
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Chapter and Conference Paper
Observation of Unconventional SQUID-like Properties for Asymmetrical Bicrystal Josephson Junction
We have investigated grain boundary Josephson junctions formed on asymmetrical bicrystal substrates. The Y1Ba2Cu3O7-δ (YBCO) or Nd1Ba2Cu3O7-δ (NBCO) c-axis oriented films have been fabricated on 45° asymmetrical ...
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Chapter and Conference Paper
New Fabrication Method of High-Jc YBa2Cu3O7 Superconducting Films on Flexible Metallic Substrates
In plane-aligned, c-axis-oriented YBa2Cu3O7 (YBCO) films were deposited on polycrystalline Ni tapes buffered with self-oxidized NiO. The in-plane alignment of the NiO layer was achieved by the oxidation of textur...
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Chapter and Conference Paper
Critical Current Density and Flux Penetration Behavior of Y123 LPE Thick Films
We report on the flux penetration behaviors of Y123 thick films grown by LPE method on MgO substrates. A typical critical current density of the films is 1.3 × 104 A/cm2 at 77K and 6T. This value is comparable or...
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Chapter and Conference Paper
Flux Pinning Property in Y-123 Single Crystal
The longitudinal and transverse flux bundle sizes are estimated for a three-dimensional single crystal Y-123 superconductor under a magnetic field along the c-axis and the result is compared with previous results...
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Chapter and Conference Paper
Vortex Correlation in Bi2Sr2Ca1Cu2Ox Single Crystals with Columnar Defects
Magnetic properties have been carried out using SQUID and ac susceptometer on Bi2Sr2Ca1Cu2Ox single crystals with different matching fields BΦ, corresponding to equal numbers of vortices and defects. The angle de...
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Chapter and Conference Paper
Double Sign Reversal of the Hall Effect in YBa2Cu3Ox Thin Films
The Hall effect in YBa2Cu3Ox thin films was measured below the irreversibility line using high current densities of the order of 106A/cm2, and the second sign reversal was clearly observed for the first time in t...
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Article
Crystal growth of NdBa2Cu3O7−y and Ba2Cu3O5+δ single crystals by a horizontal Bridgman like method
Abstracts are not published in this journal
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Article
Transport and Cu NMR studies of charge and spin dynamics in PrBa2Cu4O8
The charge and spin dynamics in PrBa2Cu4O8 are investigated by means of transport and Cu NMR measurements. The magnetoresistance was found to be very small at high temperatures and increase rapidly with decreasin...
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Article
I–V characteristics of YBa2Cu3O x thin films in high magnetic fields up to 40T
The current-voltage(I–V) characteristics of YBa2Cu3Ox thin films were measured with current densities up to 2×106 A/cm2 in high magnetic fields. In order to eliminate the heating effects, pulsed currents with a d...
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Chapter and Conference Paper
Grain Boundaries and Critical Current Density of YBa2Cu3O7-y Thick Film Prepared by Liquid Phase Epitaxy
Superconducting YBa2Cu3O7-y thick films were fabricated by liquid phase epitaxiay (LPE) on the MgO (100) single crystalline substrate. The transport supercondcting characteristics of the films depends on the crys...
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Chapter and Conference Paper
Characterization of heavily Ca doped Y1-xCaxBa2Cu3O7-d thin films
Temperature dependence of in-plane resistivity ρab, Hall coefficient Rab H, and thermoelectric power have been measured for c-axis oriented Y1-xCaxBa2Cu3O7-δ thin films with a wide range of x=0–0....
