Possible Breakthrough for Higher $T_{\text{c}}$ Discovered in Bi(Pb)2223 Practical Tapes
スポンサーリンク
概要
- 論文の詳細を見る
By systematic studies on the post-annealing effect in air for Bi(Pb)2223 practical tapes, $T_{\text{c(onset)}}$ was found to be enhanced up to 115.2 K by annealing at 680°C for 250 h from 110.2 K for an as-synthesized tape. Annealing at $\sim$700°C for a long time always increased the $T_{\text{c(onset)}}$ of the tape above 114 K, at which the generation of the Pb3221 phase simultaneously occurred during annealing. The slightly increased $c$-axis length was confirmed for annealed samples. The compositional change of cations in Bi(Pb)2223 during post-annealing is believed to be responsible for the $T_{\text{c}}$ enhancement of the present system.
- Japan Society of Applied Physicsの論文
- 2005-12-10
著者
-
KATO Takeshi
Sumitomo Electric Industries, Ltd.
-
SATO Ken-ichi
Sumitomo Electric Industries, Ltd.
-
Shimoyama Jun-ichi
Department Of Applied Chemistry School Of Engineering University Of Tokyo
-
Hayashi Kazuhiko
Sumitomo Electric Industries Ltd.
-
Kobayashi Shinichi
Sumitomo Electric Industries, Ltd., 1-1-3 Shimaya, Konohana-ku, Osaka 554-0024, Japan
-
Yamazaki Kouhei
Sumitomo Electric Industries, Ltd., 1-1-3 Shimaya, Konohana-ku, Osaka 554-0024, Japan
-
Sato Ken-ichi
Sumitomo Electric Industries, Ltd., 1-1-3 Shimaya, Konohana-ku, Osaka 554-0024, Japan
-
Kato Takeshi
Sumitomo Electric Industries, Ltd., 1-1-3 Shimaya, Konohana-ku, Osaka 554-0024, Japan
関連論文
- High Field Measurement of the Critical Field in (La_Sr_x)_2CuO_4 up to 40 T
- Tri-axial Grain Orientation of Y_2Ba_4Cu_7O_y Achieved by the Magneto-science Method
- Rare-Earth-Dependent Magnetic Anisotropy in REBa_2Cu_3O_y
- Direct Evidence of the Anisotropic Structure of Vortices Interacting with Columnar Defects in High-Temperature Superconductors through the Analysis of Lorentz Images
- Local Magnetic Properties of Underdoped La_Sr_χ CuO_4 Single Crystal Probed by Scanning Superconducting Quantum Interference Device Microscopy : Superconductors
- Resistivity Anomaly Near Room Temperature of Y-Ba-Cu-O and Related Oxides as Created by the Surface Effect of Water
- Determination of Oxygen Nonstoichiometry in a High-T_c Superconductor Ba_2YCu_3O_
- c-Axis-Correlated Vortex Pinning Center Induced by Dilute Co-doping in Pulsed-Laser-Deposition-ErBa_2Cu_3O_y Films
- Enhancement of Critical Current Density in ErBa_2Cu_3O_y Thin Films by Post-Annealing
- New Series of Nickel-Based Pnictide Oxide Superconductors (Ni_2Pn_2)(Sr_4Sc_2O_6) (Pn = P, As)
- Thermoelectric Performance of Magnetically c-Axis Aligned Ca-based Cobaltites
- Synthesis and Thermoelectric Properties of Magnetically c-Axis-Oriented [Ca_2CoO_]_CoO_2 Bulk with Various Oxygen Contents
- Oxygen Nonstoichiometry in Layered Cobaltite Ca_3Co_4O_y
- High-T_c(Bi, Pb)_2Sr_2Ca_2Cu_3O_ Superconducting Magnet Operated Using 20 K Gifford-McMahon-Type Refrigerator
- Superconductivity Above 40K Observed in a New Iron Arsenide Oxide (Fe_2As_2)(Ca_4(Mg,Ti)_3O_y)
- New Iron Arsenide Oxides (Fe_2As_2)(Sr_4(Sc,Ti)_3O_8), (Fe_2As_2)(Ba_4Sc_3O_), and (Fe_2As_2)(Ba_3Sc_2O_5)
- Carbon Nanotubes from a Divided Catalyst : the Carbon Transmission Method
- Kinetics of Magnetic Relaxation and Determination of Activation Energy in High-T_c Superconductors
- Cutting-Edge Technology of Bismuth-Based High-Temperature Superconducting Wires for Application in Energy- and Environment-Related Fields
- Intrinsic Pinning of the Josephson Vortex in a Two-Dimensional Superconductor Bi_2Sr_2CaCu_2O_ Studied via the Conversion of Ultrasonic to Electromagnetic Waves
- Pressure Dependence of Superconducting Transition Temperature on Perovskite-Type Fe-Based Superconductors and NMR Study of Sr2VFeAsO3
- Towards the Realization of Higher Connectivity in MgB Conductors : In-situ or Sintered Ex-situ? (Centennial Anniversary of Superconductivity) -- (SELECTED TOPICS IN APPLIED PHYSICS)
- Rare-Earth-Dependent Tri-axial Magnetic Anisotropies and Growth Conditions in REBaCuO (Centennial Anniversary of Superconductivity) -- (SELECTED TOPICS IN APPLIED PHYSICS)
- Contrasting Pressure Effects in Sr2VFeAsO3 and Sr2ScFePO3
- Oxygen Nonstoichiometry in Layered Cobaltite Ca3Co4Oy
- Direct Observation of Interlayer Josephson Vortices in Heavily Pb-Doped Bi2Sr2CaCu2Oy by Scanning Superconducting Quantum Interference Device Microscopy
- Dramatic Change in Magnetization Behaviors of La1.4Sr1.6Mn2O7+δ by Control of Excess Oxygen
- Possible Breakthrough for Higher $T_{\text{c}}$ Discovered in Bi(Pb)2223 Practical Tapes
- Synthesis and Thermoelectric Properties of Magnetically $c$-Axis-Oriented [Ca2CoO3-δ]0.62CoO2 Bulk with Various Oxygen Contents
- Development of Thermoelectric Bi-Based Cobaltites with an Easy Axis of Magnetization Parallel to the $C$-Axis for Magnetic Alignment
- Oxygen Nonstoichiometry in Layered Cobaltite Ca3Co4Oy
- Possible Breakthrough for Higher $T_{\text{c}}$ Discovered in Bi(Pb)2223 Practical Tapes