Critical current density and magnetic properties of a melt-processed Y 0.8Ho0.2Ba2Cu3Oy superconductor

Yong Feng; Lian Zhou; Keguang Wang; Yuheng Zhang; Xin Jin; Yitong Zhang; Jirong Jin; Xixian Yao

doi:10.1063/1.354295

Critical current density and magnetic properties of a melt-processed Y _0.8Ho_0.2Ba₂Cu₃O_y superconductor

Yong Feng, Lian Zhou, Keguang Wang, Yuheng Zhang, Xin Jin, Yitong Zhang, Jirong Jin, Xixian Yao

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

14 Scopus citations

Abstract

We have prepared a bulk Y_0.8Ho_0.2Ba ₂Cu₃O_y superconductor by the powder melting process method and investigated its magnetization curves and magnetic relaxation in the temperature range 55-77 K at different fields. The J_c values at a certain temperature and field is estimated by Bean's model. It is found that J_c decreases with the magnetic field according to a power law, whereas it drops exponentially with temperature. The dependence on temperature of the maximum diamagnetization field H_p and the remanent magnetization M_rem is discussed. The magnetic relaxation indicates that the magnetization M varies logarithmically with time. The relaxation rate dM/d ln t is also studied.

Original language	English
Pages (from-to)	5096-5100
Number of pages	5
Journal	Journal of Applied Physics
Volume	74
Issue number	8
DOIs	https://doi.org/10.1063/1.354295
State	Published - 1993
Externally published	Yes

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title = "Critical current density and magnetic properties of a melt-processed Y 0.8Ho0.2Ba2Cu3Oy superconductor",

abstract = "We have prepared a bulk Y0.8Ho0.2Ba 2Cu3Oy superconductor by the powder melting process method and investigated its magnetization curves and magnetic relaxation in the temperature range 55-77 K at different fields. The Jc values at a certain temperature and field is estimated by Bean's model. It is found that Jc decreases with the magnetic field according to a power law, whereas it drops exponentially with temperature. The dependence on temperature of the maximum diamagnetization field Hp and the remanent magnetization Mrem is discussed. The magnetic relaxation indicates that the magnetization M varies logarithmically with time. The relaxation rate dM/d ln t is also studied.",

author = "Yong Feng and Lian Zhou and Keguang Wang and Yuheng Zhang and Xin Jin and Yitong Zhang and Jirong Jin and Xixian Yao",

year = "1993",

doi = "10.1063/1.354295",

language = "英语",

volume = "74",

pages = "5096--5100",

journal = "Journal of Applied Physics",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - Critical current density and magnetic properties of a melt-processed Y 0.8Ho0.2Ba2Cu3Oy superconductor

AU - Feng, Yong

AU - Zhou, Lian

AU - Wang, Keguang

AU - Zhang, Yuheng

AU - Jin, Xin

AU - Zhang, Yitong

AU - Jin, Jirong

AU - Yao, Xixian

PY - 1993

Y1 - 1993

N2 - We have prepared a bulk Y0.8Ho0.2Ba 2Cu3Oy superconductor by the powder melting process method and investigated its magnetization curves and magnetic relaxation in the temperature range 55-77 K at different fields. The Jc values at a certain temperature and field is estimated by Bean's model. It is found that Jc decreases with the magnetic field according to a power law, whereas it drops exponentially with temperature. The dependence on temperature of the maximum diamagnetization field Hp and the remanent magnetization Mrem is discussed. The magnetic relaxation indicates that the magnetization M varies logarithmically with time. The relaxation rate dM/d ln t is also studied.

AB - We have prepared a bulk Y0.8Ho0.2Ba 2Cu3Oy superconductor by the powder melting process method and investigated its magnetization curves and magnetic relaxation in the temperature range 55-77 K at different fields. The Jc values at a certain temperature and field is estimated by Bean's model. It is found that Jc decreases with the magnetic field according to a power law, whereas it drops exponentially with temperature. The dependence on temperature of the maximum diamagnetization field Hp and the remanent magnetization Mrem is discussed. The magnetic relaxation indicates that the magnetization M varies logarithmically with time. The relaxation rate dM/d ln t is also studied.

UR - http://www.scopus.com/inward/record.url?scp=0004382088&partnerID=8YFLogxK

U2 - 10.1063/1.354295

DO - 10.1063/1.354295

M3 - 文章

AN - SCOPUS:0004382088

SN - 0021-8979

VL - 74

SP - 5096

EP - 5100

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

ER -

Critical current density and magnetic properties of a melt-processed Y _0.8Ho_0.2Ba₂Cu₃O_y superconductor

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