Magnetic resistivity in Bi2Sr2Ca(Cu 1-xCox)2Od epitaxial thin films

T. R. Yang; G. Ilonca; V. Toma; P. Balint; M. Bodea

doi:10.1142/S0217979207035923

Magnetic resistivity in Bi₂Sr₂Ca(Cu _1-xCo_x)₂O_d epitaxial thin films

T. R. Yang^*, G. Ilonca, V. Toma, P. Balint, M. Bodea

^*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 of high-quality epitaxial c-oriented Bi₂Sr₂Ca(Cu_1-xCo _x)₂O_d thin films with 0 ≤ x ≤ 0.025 has been studied as a function of temperature and magnetic field. For all samples, the effective activation energy scales as U(T, μ_oH) = Uo(1-T/T_c)^mHⁿ with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μ_oH and -Uμ_oH for thick films and ultra thin films, respectively. The results are discussed taking into account of the influence of the Co substitution with a model in which U(T, H) arises from plastic deformations of the viscous flux liquid above the vortex-glass transition temperature.

Original language	English
Pages (from-to)	127-132
Number of pages	6
Journal	International Journal of Modern Physics B
Volume	21
Issue number	1
DOIs	https://doi.org/10.1142/S0217979207035923
Publication status	Published - 2007 Jan 10

Keywords

Epitaxial films
Resistivity
Superconducting

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Condensed Matter Physics

Access to Document

10.1142/S0217979207035923

Cite this

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title = "Magnetic resistivity in Bi2Sr2Ca(Cu 1-xCox)2Od epitaxial thin films",

abstract = "The scaling behavior of the effective activation energy of high-quality epitaxial c-oriented Bi2Sr2Ca(Cu1-xCo x)2Od thin films with 0 ≤ x ≤ 0.025 has been studied as a function of temperature and magnetic field. For all samples, the effective activation energy scales as U(T, μoH) = Uo(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μoH and -UμoH for thick films and ultra thin films, respectively. The results are discussed taking into account of the influence of the Co substitution with a model in which U(T, H) arises from plastic deformations of the viscous flux liquid above the vortex-glass transition temperature.",

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T1 - Magnetic resistivity in Bi2Sr2Ca(Cu 1-xCox)2Od epitaxial thin films

AU - Yang, T. R.

AU - Ilonca, G.

AU - Toma, V.

AU - Balint, P.

AU - Bodea, M.

PY - 2007/1/10

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N2 - The scaling behavior of the effective activation energy of high-quality epitaxial c-oriented Bi2Sr2Ca(Cu1-xCo x)2Od thin films with 0 ≤ x ≤ 0.025 has been studied as a function of temperature and magnetic field. For all samples, the effective activation energy scales as U(T, μoH) = Uo(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μoH and -UμoH for thick films and ultra thin films, respectively. The results are discussed taking into account of the influence of the Co substitution with a model in which U(T, H) arises from plastic deformations of the viscous flux liquid above the vortex-glass transition temperature.

AB - The scaling behavior of the effective activation energy of high-quality epitaxial c-oriented Bi2Sr2Ca(Cu1-xCo x)2Od thin films with 0 ≤ x ≤ 0.025 has been studied as a function of temperature and magnetic field. For all samples, the effective activation energy scales as U(T, μoH) = Uo(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μoH and -UμoH for thick films and ultra thin films, respectively. The results are discussed taking into account of the influence of the Co substitution with a model in which U(T, H) arises from plastic deformations of the viscous flux liquid above the vortex-glass transition temperature.

KW - Epitaxial films

KW - Resistivity

KW - Superconducting

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