Magnetization relaxation in YBCO films with improved supercurrent transport properties

L. Miu, I. Ivan, P. Badica, G. Jakob, D. Miu, Paolo Mele, K. Matsumoto, M. Mukaida, Y. Yoshida, T. Horide, A. Ichinose, S. Horii

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The relaxation of the irreversible magnetization in optimally doped YBCO films with natural and artificial pinning centres was measured in zero-field cooling conditions using SQUID magnetometry. The external magnetic field H was oriented along the c axis. An appropriate method for the determination of the characteristic vortex pinning energy from the normalized vortex-creep activation energy is discussed. This is based on the existence of a crossover elastic (collective) vortex creep at low temperatures T - plastic vortex creep at high T, caused by the T dependent macroscopic currents induced in the sample during magnetization measurements.

Original languageEnglish
Article number012026
JournalJournal of Physics: Conference Series
Volume234
Issue numberPART 1
DOIs
Publication statusPublished - 2010 Jan 1
Externally publishedYes

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transport properties
vortices
magnetization
magnetic measurement
crossovers
plastics
activation energy
cooling
magnetic fields
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magnetization relaxation in YBCO films with improved supercurrent transport properties. / Miu, L.; Ivan, I.; Badica, P.; Jakob, G.; Miu, D.; Mele, Paolo; Matsumoto, K.; Mukaida, M.; Yoshida, Y.; Horide, T.; Ichinose, A.; Horii, S.

In: Journal of Physics: Conference Series, Vol. 234, No. PART 1, 012026, 01.01.2010.

Research output: Contribution to journalArticle

Miu, L, Ivan, I, Badica, P, Jakob, G, Miu, D, Mele, P, Matsumoto, K, Mukaida, M, Yoshida, Y, Horide, T, Ichinose, A & Horii, S 2010, 'Magnetization relaxation in YBCO films with improved supercurrent transport properties', Journal of Physics: Conference Series, vol. 234, no. PART 1, 012026. https://doi.org/10.1088/1742-6596/234/1/012026
Miu, L. ; Ivan, I. ; Badica, P. ; Jakob, G. ; Miu, D. ; Mele, Paolo ; Matsumoto, K. ; Mukaida, M. ; Yoshida, Y. ; Horide, T. ; Ichinose, A. ; Horii, S. / Magnetization relaxation in YBCO films with improved supercurrent transport properties. In: Journal of Physics: Conference Series. 2010 ; Vol. 234, No. PART 1.
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AU - Mukaida, M.

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