Fishtail effect, magnetic properties and critical current density of Gd-added PMP YBCO

Yong Feng; Lian Zhou; J. G. Wen; N. Koshizuka; A. Sulpice; J. L. Tholence; J. C. Vallier; P. Monceau

doi:10.1016/S0921-4534(97)01847-9

Fishtail effect, magnetic properties and critical current density of Gd-added PMP YBCO

Yong Feng, Lian Zhou, J. G. Wen, N. Koshizuka, A. Sulpice, J. L. Tholence, J. C. Vallier, P. Monceau

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29 引用（Scopus）

摘要

The magnetization curves of YBa₂Cu₃O_y and Y_0.4Gd_0.6Ba₂Cu₃O_y samples prepared by a powder melting process technique were measured with a superconducting quantum interference device magnetometer at different temperatures. Fishtail effects are observed below 70 K with the H ⊥ c configuration in the Gd-added sample, while no peak effect is found in YBCO. The origin of the fishtail is discussed. It is found that J_c and flux pinning can be increased by the Gd addition. The magnitude of the improvement of J_c increases with the magnetic field. The reduction of the size of Y₂BaCuO₅ particles, stress-field pinning and magnetic pinning induced by the substitution of Gd for Y may explain the enhancement of J_c and flux pinning.

源语言	英语
页（从-至）	75-84
页数	10
期刊	Physica C: Superconductivity and its Applications
卷	297
期	1-2
DOI	https://doi.org/10.1016/S0921-4534(97)01847-9
出版状态	已出版 - 1 3月 1998
已对外发布	是

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title = "Fishtail effect, magnetic properties and critical current density of Gd-added PMP YBCO",

abstract = "The magnetization curves of YBa2Cu3Oy and Y0.4Gd0.6Ba2Cu3Oy samples prepared by a powder melting process technique were measured with a superconducting quantum interference device magnetometer at different temperatures. Fishtail effects are observed below 70 K with the H ⊥ c configuration in the Gd-added sample, while no peak effect is found in YBCO. The origin of the fishtail is discussed. It is found that Jc and flux pinning can be increased by the Gd addition. The magnitude of the improvement of Jc increases with the magnetic field. The reduction of the size of Y2BaCuO5 particles, stress-field pinning and magnetic pinning induced by the substitution of Gd for Y may explain the enhancement of Jc and flux pinning.",

keywords = "Fishtail effect, Flux pinning, Gd addition, YBCO",

author = "Yong Feng and Lian Zhou and Wen, {J. G.} and N. Koshizuka and A. Sulpice and Tholence, {J. L.} and Vallier, {J. C.} and P. Monceau",

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T1 - Fishtail effect, magnetic properties and critical current density of Gd-added PMP YBCO

AU - Feng, Yong

AU - Zhou, Lian

AU - Wen, J. G.

AU - Koshizuka, N.

AU - Sulpice, A.

AU - Tholence, J. L.

AU - Vallier, J. C.

AU - Monceau, P.

PY - 1998/3/1

Y1 - 1998/3/1

N2 - The magnetization curves of YBa2Cu3Oy and Y0.4Gd0.6Ba2Cu3Oy samples prepared by a powder melting process technique were measured with a superconducting quantum interference device magnetometer at different temperatures. Fishtail effects are observed below 70 K with the H ⊥ c configuration in the Gd-added sample, while no peak effect is found in YBCO. The origin of the fishtail is discussed. It is found that Jc and flux pinning can be increased by the Gd addition. The magnitude of the improvement of Jc increases with the magnetic field. The reduction of the size of Y2BaCuO5 particles, stress-field pinning and magnetic pinning induced by the substitution of Gd for Y may explain the enhancement of Jc and flux pinning.

AB - The magnetization curves of YBa2Cu3Oy and Y0.4Gd0.6Ba2Cu3Oy samples prepared by a powder melting process technique were measured with a superconducting quantum interference device magnetometer at different temperatures. Fishtail effects are observed below 70 K with the H ⊥ c configuration in the Gd-added sample, while no peak effect is found in YBCO. The origin of the fishtail is discussed. It is found that Jc and flux pinning can be increased by the Gd addition. The magnitude of the improvement of Jc increases with the magnetic field. The reduction of the size of Y2BaCuO5 particles, stress-field pinning and magnetic pinning induced by the substitution of Gd for Y may explain the enhancement of Jc and flux pinning.

KW - Fishtail effect

KW - Flux pinning

KW - Gd addition

KW - YBCO

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U2 - 10.1016/S0921-4534(97)01847-9

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SN - 0921-4534

VL - 297

SP - 75

EP - 84

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-2

ER -

Fishtail effect, magnetic properties and critical current density of Gd-added PMP YBCO

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