Upper critical field and critical current density in ceramic samples of Pb2Sr2Y0.5Ca0.5Cu3O8+δ

Yoji Koike; Masahiro Masuzawa; Hiromu Sunagawa; Takashi Noji; Hisashi Kawabe; Norio Kobayashi; Yoshitami Saito

doi:10.1143/JJAP.29.L408

Upper critical field and critical current density in ceramic samples of Pb₂Sr₂Y_0.5Ca_0.5Cu₃O_8+δ

Yoji Koike, Masahiro Masuzawa, Hiromu Sunagawa, Takashi Noji, Hisashi Kawabe, Norio Kobayashi, Yoshitami Saito

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The electrical resistance of ceramic samples Pb₂Sr₂Y_0.5Ca_0.5Cu₃O_8+δ with zero resistance at 75 K has been measured in magnetic fields up to 21 T. The superconducting transition curve becomes as broad in the field longitudinal to the current direction as in the transverse field. The value of -dH_c2/dT is estimated as 1.7–1.8 T/K. The resistive tail in the lower portion of the transition curve is well expressed as ρ=ρ₀ exp (-U₀/k_BT). The critical current density J_c shows hysteresis with respect to the magnetic field sweep, and is as low as 0.1 A ·cm^-2 at 4.2 K in magnetic fields between 1 T and 13 T.

Original language	English
Pages (from-to)	L408-L411
Journal	Japanese journal of applied physics
Volume	29
Issue number	3
DOIs	https://doi.org/10.1143/JJAP.29.L408
Publication status	Published - 1990 Mar
Externally published	Yes

Keywords

Critical current density
Electrical resistance
High- T oxide superconductor
PbSr YCaCu0
PbSrACu0Pb-Sr-Y -Ca-Cu-0
Superconducting fluctuation
Superconducting transition temperature
Thermally activated resistance
Upper critical field

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.29.L408

Cite this

@article{524660399ff9465bb9372425e74e764f,

title = "Upper critical field and critical current density in ceramic samples of Pb2Sr2Y0.5Ca0.5Cu3O8+δ",

abstract = "The electrical resistance of ceramic samples Pb2Sr2Y0.5Ca0.5Cu3O8+δ with zero resistance at 75 K has been measured in magnetic fields up to 21 T. The superconducting transition curve becomes as broad in the field longitudinal to the current direction as in the transverse field. The value of -dHc2/dT is estimated as 1.7–1.8 T/K. The resistive tail in the lower portion of the transition curve is well expressed as ρ=ρ0 exp (-U0/kBT). The critical current density Jc shows hysteresis with respect to the magnetic field sweep, and is as low as 0.1 A ·cm-2 at 4.2 K in magnetic fields between 1 T and 13 T.",

keywords = "Critical current density, Electrical resistance, High- T oxide superconductor, PbSr YCaCu0, PbSrACu0Pb-Sr-Y -Ca-Cu-0, Superconducting fluctuation, Superconducting transition temperature, Thermally activated resistance, Upper critical field",

author = "Yoji Koike and Masahiro Masuzawa and Hiromu Sunagawa and Takashi Noji and Hisashi Kawabe and Norio Kobayashi and Yoshitami Saito",

year = "1990",

month = mar,

doi = "10.1143/JJAP.29.L408",

language = "English",

volume = "29",

pages = "L408--L411",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

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publisher = "Japan Society of Applied Physics",

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TY - JOUR

T1 - Upper critical field and critical current density in ceramic samples of Pb2Sr2Y0.5Ca0.5Cu3O8+δ

AU - Koike, Yoji

AU - Masuzawa, Masahiro

AU - Sunagawa, Hiromu

AU - Noji, Takashi

AU - Kawabe, Hisashi

AU - Kobayashi, Norio

AU - Saito, Yoshitami

PY - 1990/3

Y1 - 1990/3

N2 - The electrical resistance of ceramic samples Pb2Sr2Y0.5Ca0.5Cu3O8+δ with zero resistance at 75 K has been measured in magnetic fields up to 21 T. The superconducting transition curve becomes as broad in the field longitudinal to the current direction as in the transverse field. The value of -dHc2/dT is estimated as 1.7–1.8 T/K. The resistive tail in the lower portion of the transition curve is well expressed as ρ=ρ0 exp (-U0/kBT). The critical current density Jc shows hysteresis with respect to the magnetic field sweep, and is as low as 0.1 A ·cm-2 at 4.2 K in magnetic fields between 1 T and 13 T.

AB - The electrical resistance of ceramic samples Pb2Sr2Y0.5Ca0.5Cu3O8+δ with zero resistance at 75 K has been measured in magnetic fields up to 21 T. The superconducting transition curve becomes as broad in the field longitudinal to the current direction as in the transverse field. The value of -dHc2/dT is estimated as 1.7–1.8 T/K. The resistive tail in the lower portion of the transition curve is well expressed as ρ=ρ0 exp (-U0/kBT). The critical current density Jc shows hysteresis with respect to the magnetic field sweep, and is as low as 0.1 A ·cm-2 at 4.2 K in magnetic fields between 1 T and 13 T.

KW - Critical current density

KW - Electrical resistance

KW - High- T oxide superconductor

KW - PbSr YCaCu0

KW - PbSrACu0Pb-Sr-Y -Ca-Cu-0

KW - Superconducting fluctuation

KW - Superconducting transition temperature

KW - Thermally activated resistance

KW - Upper critical field

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

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