Activation energy of Bi2Sr2Ca1-xErx Cu2O8+d epitaxial thin films

Tzuen Rong Yang, Gheorghe Ilonca, Aurel Pop, G. Ştiufiuc, C. Lung

Research output: Contribution to journalArticle

Abstract

The scaling behavior of the effective activation energy U (T,H) of epitaxial oriented Bi2Sr2Ca1-xErxCu 2O8+d thin films with 0 ≤ x ≤ 0.10 has been studied as function of temperature and magnetic field. It has been found that the activation energy scales as U (H,T) = Uo (1-t)m Hn with exponent m = 1.20±0.03 and n = -1/2. The field and temperature dependence of the activation energy, as well as its overall magnitude, is consistent with a model in which U (T, H) arises from plastic deformations of viscous flux liquid above the vortex-glass transition temperature.

Original languageEnglish
Pages (from-to)539-543
Number of pages5
JournalJournal of Low Temperature Physics
Volume131
Issue number3-4
DOIs
Publication statusPublished - 2003 May

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Epitaxial films
Activation energy
activation energy
Thin films
thin films
glass transition temperature
plastic deformation
Plastic deformation
Temperature distribution
Vortex flow
temperature distribution
exponents
vortices
Magnetic fields
Fluxes
scaling
temperature dependence
Liquids
liquids
magnetic fields

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Activation energy of Bi2Sr2Ca1-xErx Cu2O8+d epitaxial thin films. / Yang, Tzuen Rong; Ilonca, Gheorghe; Pop, Aurel; Ştiufiuc, G.; Lung, C.

In: Journal of Low Temperature Physics, Vol. 131, No. 3-4, 05.2003, p. 539-543.

Research output: Contribution to journalArticle

Yang, Tzuen Rong ; Ilonca, Gheorghe ; Pop, Aurel ; Ştiufiuc, G. ; Lung, C. / Activation energy of Bi2Sr2Ca1-xErx Cu2O8+d epitaxial thin films. In: Journal of Low Temperature Physics. 2003 ; Vol. 131, No. 3-4. pp. 539-543.
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