Flux jumps in textured (Nd0.33Eu0.33Gd0.33 )Ba2Cu3O7-δ superconductor with high content Gd-211 phase

Chang Yun Chi; Jin Cang Zhang; Ling Wei Li; Fen Liu; Wen Feng Li; Chao Jing; Shi Xun Cao; Muralidhar Miryala; Xin Yao

Flux jumps in textured (Nd_0.33Eu_0.33Gd_0.33 )Ba₂Cu₃O_7-δ superconductor with high content Gd-211 phase

Chang Yun Chi, Jin Cang Zhang, Ling Wei Li, Fen Liu, Wen Feng Li, Chao Jing, Shi Xun Cao, Muralidhar Miryala, Xin Yao

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

Abstract

Flux jumps behavior in textured (Nd_0.33Eu_0.33Gd_0.33 )Ba₂Cu₃O_7-δ (with high content of Gd-211 phase) have been studied. With the magnetic field parallel to the c axis, partial flux jumps have been observed in the temperature range 2-3 K, and there were no jumps found above 5 K. When ab plane is parallel to the field direction, no flux jumps have been observed in the whole temperature range (from 2 K to T_c). The anisotropic flux instability may be due to the anisotropic pinning force and geometrical demagnetization factor. As the temperature increases, the number of flux jumps is decreased, and the third quadrant of M(H) curve is the most flux instability quadrant. Finally we have studied the magnetic field sweep rate dependence of flux jump, and discussed the influence of flux creep on flux jump.

Original language	English
Pages (from-to)	2307-2312
Number of pages	6
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	54
Issue number	5
Publication status	Published - 2005 May
Externally published	Yes

Keywords

(NdEuGd )BaCuO superconductor
Flux jump
Oxygen-controlled melt growth method

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

@article{64bad1b3d639437bbf47c4f5eb2347de,

title = "Flux jumps in textured (Nd0.33Eu0.33Gd0.33 )Ba2Cu3O7-δ superconductor with high content Gd-211 phase",

abstract = "Flux jumps behavior in textured (Nd0.33Eu0.33Gd0.33 )Ba2Cu3O7-δ (with high content of Gd-211 phase) have been studied. With the magnetic field parallel to the c axis, partial flux jumps have been observed in the temperature range 2-3 K, and there were no jumps found above 5 K. When ab plane is parallel to the field direction, no flux jumps have been observed in the whole temperature range (from 2 K to Tc). The anisotropic flux instability may be due to the anisotropic pinning force and geometrical demagnetization factor. As the temperature increases, the number of flux jumps is decreased, and the third quadrant of M(H) curve is the most flux instability quadrant. Finally we have studied the magnetic field sweep rate dependence of flux jump, and discussed the influence of flux creep on flux jump.",

keywords = "(NdEuGd )BaCuO superconductor, Flux jump, Oxygen-controlled melt growth method",

author = "Chi, {Chang Yun} and Zhang, {Jin Cang} and Li, {Ling Wei} and Fen Liu and Li, {Wen Feng} and Chao Jing and Cao, {Shi Xun} and Muralidhar Miryala and Xin Yao",

year = "2005",

month = may,

language = "English",

volume = "54",

pages = "2307--2312",

journal = "Wuli Xuebao/Acta Physica Sinica",

issn = "1000-3290",

publisher = "Science Press",

number = "5",

}

TY - JOUR

T1 - Flux jumps in textured (Nd0.33Eu0.33Gd0.33 )Ba2Cu3O7-δ superconductor with high content Gd-211 phase

AU - Chi, Chang Yun

AU - Zhang, Jin Cang

AU - Li, Ling Wei

AU - Liu, Fen

AU - Li, Wen Feng

AU - Jing, Chao

AU - Cao, Shi Xun

AU - Miryala, Muralidhar

AU - Yao, Xin

PY - 2005/5

Y1 - 2005/5

N2 - Flux jumps behavior in textured (Nd0.33Eu0.33Gd0.33 )Ba2Cu3O7-δ (with high content of Gd-211 phase) have been studied. With the magnetic field parallel to the c axis, partial flux jumps have been observed in the temperature range 2-3 K, and there were no jumps found above 5 K. When ab plane is parallel to the field direction, no flux jumps have been observed in the whole temperature range (from 2 K to Tc). The anisotropic flux instability may be due to the anisotropic pinning force and geometrical demagnetization factor. As the temperature increases, the number of flux jumps is decreased, and the third quadrant of M(H) curve is the most flux instability quadrant. Finally we have studied the magnetic field sweep rate dependence of flux jump, and discussed the influence of flux creep on flux jump.

AB - Flux jumps behavior in textured (Nd0.33Eu0.33Gd0.33 )Ba2Cu3O7-δ (with high content of Gd-211 phase) have been studied. With the magnetic field parallel to the c axis, partial flux jumps have been observed in the temperature range 2-3 K, and there were no jumps found above 5 K. When ab plane is parallel to the field direction, no flux jumps have been observed in the whole temperature range (from 2 K to Tc). The anisotropic flux instability may be due to the anisotropic pinning force and geometrical demagnetization factor. As the temperature increases, the number of flux jumps is decreased, and the third quadrant of M(H) curve is the most flux instability quadrant. Finally we have studied the magnetic field sweep rate dependence of flux jump, and discussed the influence of flux creep on flux jump.

KW - (NdEuGd )BaCuO superconductor

KW - Flux jump

KW - Oxygen-controlled melt growth method

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JO - Wuli Xuebao/Acta Physica Sinica

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IS - 5

ER -

Flux jumps in textured (Nd_0.33Eu_0.33Gd_0.33 )Ba₂Cu₃O_7-δ superconductor with high content Gd-211 phase

Abstract

Keywords

ASJC Scopus subject areas

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