Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging

Y. H. Liu; L. Lu; Z. Q. Luo; K. Luo; L. Xiao; H. T. Ren; Y. L. Jiao; M. H. Zheng; Z. X. Gao

doi:10.1016/S0921-4534(00)00869-8

Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging

Y. H. Liu, L. Lu, Z. Q. Luo, K. Luo, L. Xiao, H. T. Ren, Y. L. Jiao, M. H. Zheng, Z. X. Gao

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1 Scopus citations

Abstract

We use the magneto-optic imaging to determine the spatial distribution and the time dependence of the magnetic induction B₂ (x, t) on the broad surface of the melt texture growth YBCO bulk. The model-independent effective activation energy U and the current density j could be calculated from B_z(x,t), ∂B_z(x,t)/∂t and ∂B_z(x,t)/∂x. The good fit shows that the thermally activated flux creep in the melt texture growth bulk is consistent with the logarithmic model in the temperature range of liquid nitrogen.

Original language	English
Pages (from-to)	1337-1338
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	341-348
Issue number	PART 3
DOIs	https://doi.org/10.1016/S0921-4534(00)00869-8
State	Published - 2000
Externally published	Yes

Funding

*Supported by the National Center for Research and Development on Superconductivity of China (863 and 973 projects)

Funders	Funder number
National Center for Research and Development	863, 973

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10.1016/S0921-4534(00)00869-8

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title = "Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging",

abstract = "We use the magneto-optic imaging to determine the spatial distribution and the time dependence of the magnetic induction B2 (x, t) on the broad surface of the melt texture growth YBCO bulk. The model-independent effective activation energy U and the current density j could be calculated from Bz(x,t), ∂Bz(x,t)/∂t and ∂Bz(x,t)/∂x. The good fit shows that the thermally activated flux creep in the melt texture growth bulk is consistent with the logarithmic model in the temperature range of liquid nitrogen.",

author = "Liu, {Y. H.} and L. Lu and Luo, {Z. Q.} and K. Luo and L. Xiao and Ren, {H. T.} and Jiao, {Y. L.} and Zheng, {M. H.} and Gao, {Z. X.}",

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doi = "10.1016/S0921-4534(00)00869-8",

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T1 - Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging

AU - Liu, Y. H.

AU - Lu, L.

AU - Luo, Z. Q.

AU - Luo, K.

AU - Xiao, L.

AU - Ren, H. T.

AU - Jiao, Y. L.

AU - Zheng, M. H.

AU - Gao, Z. X.

PY - 2000

Y1 - 2000

N2 - We use the magneto-optic imaging to determine the spatial distribution and the time dependence of the magnetic induction B2 (x, t) on the broad surface of the melt texture growth YBCO bulk. The model-independent effective activation energy U and the current density j could be calculated from Bz(x,t), ∂Bz(x,t)/∂t and ∂Bz(x,t)/∂x. The good fit shows that the thermally activated flux creep in the melt texture growth bulk is consistent with the logarithmic model in the temperature range of liquid nitrogen.

AB - We use the magneto-optic imaging to determine the spatial distribution and the time dependence of the magnetic induction B2 (x, t) on the broad surface of the melt texture growth YBCO bulk. The model-independent effective activation energy U and the current density j could be calculated from Bz(x,t), ∂Bz(x,t)/∂t and ∂Bz(x,t)/∂x. The good fit shows that the thermally activated flux creep in the melt texture growth bulk is consistent with the logarithmic model in the temperature range of liquid nitrogen.

UR - http://www.scopus.com/inward/record.url?scp=0343832324&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(00)00869-8

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M3 - Article

AN - SCOPUS:0343832324

SN - 0921-4534

VL - 341-348

SP - 1337

EP - 1338

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 3

ER -

Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging

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