Low field magnetic relaxation of superconducting C60Rb3

L. M. Wang; H. C. Yang; J. H. Hwang; C. Y. Mou; H. E. Horng

doi:10.1016/0921-4526(94)91533-4

Low field magnetic relaxation of superconducting C₆₀Rb₃

L. M. Wang^*
, H. C. Yang
, J. H. Hwang
, C. Y. Mou
, H. E. Horng

^*此作品的通信作者

光電工程研究所暨學士學位學程

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

摘要

The relaxation of magnetization M in superconducting C₆₀Rb₃ have been measured at different temperature ranges in low magnetic fields below T_c to explore the flux pinning. The measurements were performed with a superconducting quantum interference magnetometer. The applied magnetic field was 300 G - 600 G and the measured time at each temperature was 1 × 10⁴ sec. M versus 1nt shows a linear behavior for t ≥ 3600 sec. The data were analyzed in the framework of the flux pinning model of Anderson-Kim. The analyses give the activation energy of U(5K) ≈ 20 mev, and the critical current density based on J_c(T) ∝ [dM/dlnt] × [U/kT] shows J_c ∝ (1-t)^m, with the exponent m ≈ 2.0. The results are discussed.

原文	英語
頁（從 - 到）	2067-2068
頁數	2
期刊	Physica B: Physics of Condensed Matter
卷	194-196
發行號	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91533-4
出版狀態	已發佈 - 1994 2月 2

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學
電氣與電子工程

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10.1016/0921-4526(94)91533-4

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引用此

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title = "Low field magnetic relaxation of superconducting C60Rb3",

abstract = "The relaxation of magnetization M in superconducting C60Rb3 have been measured at different temperature ranges in low magnetic fields below Tc to explore the flux pinning. The measurements were performed with a superconducting quantum interference magnetometer. The applied magnetic field was 300 G - 600 G and the measured time at each temperature was 1 × 104 sec. M versus 1nt shows a linear behavior for t ≥ 3600 sec. The data were analyzed in the framework of the flux pinning model of Anderson-Kim. The analyses give the activation energy of U(5K) ≈ 20 mev, and the critical current density based on Jc(T) ∝ [dM/dlnt] × [U/kT] shows Jc ∝ (1-t)m, with the exponent m ≈ 2.0. The results are discussed.",

author = "Wang, \{L. M.\} and Yang, \{H. C.\} and Hwang, \{J. H.\} and Mou, \{C. Y.\} and Horng, \{H. E.\}",

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T1 - Low field magnetic relaxation of superconducting C60Rb3

AU - Wang, L. M.

AU - Yang, H. C.

AU - Hwang, J. H.

AU - Mou, C. Y.

AU - Horng, H. E.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - The relaxation of magnetization M in superconducting C60Rb3 have been measured at different temperature ranges in low magnetic fields below Tc to explore the flux pinning. The measurements were performed with a superconducting quantum interference magnetometer. The applied magnetic field was 300 G - 600 G and the measured time at each temperature was 1 × 104 sec. M versus 1nt shows a linear behavior for t ≥ 3600 sec. The data were analyzed in the framework of the flux pinning model of Anderson-Kim. The analyses give the activation energy of U(5K) ≈ 20 mev, and the critical current density based on Jc(T) ∝ [dM/dlnt] × [U/kT] shows Jc ∝ (1-t)m, with the exponent m ≈ 2.0. The results are discussed.

AB - The relaxation of magnetization M in superconducting C60Rb3 have been measured at different temperature ranges in low magnetic fields below Tc to explore the flux pinning. The measurements were performed with a superconducting quantum interference magnetometer. The applied magnetic field was 300 G - 600 G and the measured time at each temperature was 1 × 104 sec. M versus 1nt shows a linear behavior for t ≥ 3600 sec. The data were analyzed in the framework of the flux pinning model of Anderson-Kim. The analyses give the activation energy of U(5K) ≈ 20 mev, and the critical current density based on Jc(T) ∝ [dM/dlnt] × [U/kT] shows Jc ∝ (1-t)m, with the exponent m ≈ 2.0. The results are discussed.

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M3 - Article

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JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART 2

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Low field magnetic relaxation of superconducting C60Rb3

摘要

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Low field magnetic relaxation of superconducting C₆₀Rb₃