Magnetic field and temperature dependence of thermal activated dissipation in epitaxial thin films of Bi2Sr2Ca(Cu1-xCox) 2Od superconductors

G. Ilonca; V. Toma; T. R. Yang; A. V. Pop; P. Balint; M. Bodea; E. Macocian

doi:10.1016/j.physc.2007.03.053

Magnetic field and temperature dependence of thermal activated dissipation in epitaxial thin films of Bi₂Sr₂Ca(Cu_1-xCo_x) ₂O_d superconductors

G. Ilonca^*
, V. Toma
, T. R. Yang
, A. V. Pop
, P. Balint
, M. Bodea
, E. Macocian

^*此作品的通信作者

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

3 引文斯高帕斯（Scopus）

摘要

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, μ₀H) = U₀(1-T/T_c)^mHⁿ with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μ₀H and -Uμ₀H for thick films and ultra thin films, respectively. The results are discussed taking 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.

原文	英語
頁（從 - 到）	369-371
頁數	3
期刊	Physica C: Superconductivity and its Applications
卷	460-462 I
發行號	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.03.053
出版狀態	已發佈 - 2007 9月 1

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學
能源工程與電力技術
電氣與電子工程

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10.1016/j.physc.2007.03.053

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title = "Magnetic field and temperature dependence of thermal activated dissipation in epitaxial thin films of Bi2Sr2Ca(Cu1-xCox) 2Od superconductors",

abstract = "The scaling behavior of the effective activation energy of high-quality epitaxial c-oriented Bi2Sr2Ca(Cu1-xCox) 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, μ0H) = U0(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μ0H and -Uμ0H for thick films and ultra thin films, respectively. The results are discussed taking 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.",

keywords = "Activation energy, Epitaxial films, Magnetoresistivity",

author = "G. Ilonca and V. Toma and Yang, \{T. R.\} and Pop, \{A. V.\} and P. Balint and M. Bodea and E. Macocian",

year = "2007",

month = sep,

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doi = "10.1016/j.physc.2007.03.053",

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TY - JOUR

T1 - Magnetic field and temperature dependence of thermal activated dissipation in epitaxial thin films of Bi2Sr2Ca(Cu1-xCox) 2Od superconductors

AU - Ilonca, G.

AU - Toma, V.

AU - Yang, T. R.

AU - Pop, A. V.

AU - Balint, P.

AU - Bodea, M.

AU - Macocian, E.

PY - 2007/9/1

Y1 - 2007/9/1

N2 - The scaling behavior of the effective activation energy of high-quality epitaxial c-oriented Bi2Sr2Ca(Cu1-xCox) 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, μ0H) = U0(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μ0H and -Uμ0H for thick films and ultra thin films, respectively. The results are discussed taking 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-xCox) 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, μ0H) = U0(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μ0H and -Uμ0H for thick films and ultra thin films, respectively. The results are discussed taking 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 - Activation energy

KW - Epitaxial films

KW - Magnetoresistivity

UR - https://www.scopus.com/pages/publications/34548309213

UR - https://www.scopus.com/pages/publications/34548309213#tab=citedBy

U2 - 10.1016/j.physc.2007.03.053

DO - 10.1016/j.physc.2007.03.053

M3 - Article

AN - SCOPUS:34548309213

SN - 0921-4534

VL - 460-462 I

SP - 369

EP - 371

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - SPEC. ISS.

ER -

Magnetic field and temperature dependence of thermal activated dissipation in epitaxial thin films of Bi2Sr2Ca(Cu1-xCox) 2Od superconductors

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ASJC Scopus subject areas

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Magnetic field and temperature dependence of thermal activated dissipation in epitaxial thin films of Bi₂Sr₂Ca(Cu_1-xCo_x) ₂O_d superconductors