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

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

doi:10.1023/A:1022911621882

Activation energy of Bi₂Sr₂Ca₁-_xEr_x Cu₂O_8+d epitaxial thin films

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

^*Corresponding author for this work

Department of Physics

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

Abstract

The scaling behavior of the effective activation energy U (T,H) of epitaxial oriented Bi₂Sr₂Ca₁-_xEr_xCu ₂O_8+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) = U_o (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 language	English
Pages (from-to)	539-543
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	131
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1022911621882
Publication status	Published - 2003 May

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

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title = "Activation energy of Bi2Sr2Ca1-xErx Cu2O8+d epitaxial thin films",

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.",

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T1 - Activation energy of Bi2Sr2Ca1-xErx Cu2O8+d epitaxial thin films

AU - Yang, Tzuen Rong

AU - Ilonca, Gheorghe

AU - Pop, Aurel

AU - Ştiufiuc, G.

AU - Lung, C.

PY - 2003/5

Y1 - 2003/5

N2 - 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.

AB - 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.

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Activation energy of Bi₂Sr₂Ca₁-_xEr_x Cu₂O_8+d epitaxial thin films

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