Flux creep effect in a ring shape YBCO film from magnetic relaxation measurements

S. H. Chun; S. H. Moon; Yonuk Chong; Z. G. Khim

doi:10.1016/0921-4534(94)90986-5

Flux creep effect in a ring shape YBCO film from magnetic relaxation measurements

S. H. Chun
, S. H. Moon
, Yonuk Chong
, Z. G. Khim

Seoul National University

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

2 Scopus citations

Abstract

We measured the temperature dependence of the magnetic relaxation in a ring-shape c-axis oriented YBCO thin film. The normalized relaxation rate was proportional to the temperature, implying a temperature- independent pinning energy, which is different from that of square-shape films in magnitude and in its temperature dependence. From the temperature and time dependent relaxation rate, we constructed U(J) relations. The result is a logarithmic one and fits well over a wide temperature range. We discuss the above results in relation to the pinning force distribution in samples.

Original language	English
Pages (from-to)	2919-2920
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	235-240
Issue number	PART 5
DOIs	https://doi.org/10.1016/0921-4534(94)90986-5
State	Published - Dec 1994
Externally published	Yes

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title = "Flux creep effect in a ring shape YBCO film from magnetic relaxation measurements",

abstract = "We measured the temperature dependence of the magnetic relaxation in a ring-shape c-axis oriented YBCO thin film. The normalized relaxation rate was proportional to the temperature, implying a temperature- independent pinning energy, which is different from that of square-shape films in magnitude and in its temperature dependence. From the temperature and time dependent relaxation rate, we constructed U(J) relations. The result is a logarithmic one and fits well over a wide temperature range. We discuss the above results in relation to the pinning force distribution in samples.",

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year = "1994",

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T1 - Flux creep effect in a ring shape YBCO film from magnetic relaxation measurements

AU - Chun, S. H.

AU - Moon, S. H.

AU - Chong, Yonuk

AU - Khim, Z. G.

PY - 1994/12

Y1 - 1994/12

N2 - We measured the temperature dependence of the magnetic relaxation in a ring-shape c-axis oriented YBCO thin film. The normalized relaxation rate was proportional to the temperature, implying a temperature- independent pinning energy, which is different from that of square-shape films in magnitude and in its temperature dependence. From the temperature and time dependent relaxation rate, we constructed U(J) relations. The result is a logarithmic one and fits well over a wide temperature range. We discuss the above results in relation to the pinning force distribution in samples.

AB - We measured the temperature dependence of the magnetic relaxation in a ring-shape c-axis oriented YBCO thin film. The normalized relaxation rate was proportional to the temperature, implying a temperature- independent pinning energy, which is different from that of square-shape films in magnitude and in its temperature dependence. From the temperature and time dependent relaxation rate, we constructed U(J) relations. The result is a logarithmic one and fits well over a wide temperature range. We discuss the above results in relation to the pinning force distribution in samples.

UR - https://www.scopus.com/pages/publications/4243568635

U2 - 10.1016/0921-4534(94)90986-5

DO - 10.1016/0921-4534(94)90986-5

M3 - Article

AN - SCOPUS:4243568635

SN - 0921-4534

VL - 235-240

SP - 2919

EP - 2920

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 5

ER -

Flux creep effect in a ring shape YBCO film from magnetic relaxation measurements

Abstract

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