Vortex dynamic properties of vortex-liquid phase in YBa2Cu3O7-δ epitaxial films

L. Shan; Z. H. Wang; X. N. Xu; X. Jin; L. J. Shen; C. C. Lam; Y. S. Chen

doi:10.1002/1521-3951(200005)219:1<133::AID-PSSB133>3.0.CO;2-8

Vortex dynamic properties of vortex-liquid phase in YBa₂Cu₃O_7-δ epitaxial films

L. Shan
, Z. H. Wang
, X. N. Xu
, X. Jin
, L. J. Shen
, C. C. Lam
, Y. S. Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

The current-voltage characteristics (CVC) of YBa₂Cu₃O_7-δ epitaxial films were determined at temperatures and magnetic fields covering the vortex-liquid region. Using functional fitting and scaling method, we derived the temperature and magnetic field dependences of the pinning potential U₀(T, H) and critical current density J_C(T, H), and current, temperature and magnetic field dependences of the effective pinning potential U_eff(H, T, J) from the CVC. It is shown that the nonlinear resistance region of the vortex-liquid phase displays a process from vortex plastic motion to free flow with the dynamic exponent changing from -0.5 to 0.
© 2000 WILEY-VCH Verlag Berlin GmbH, Fed. Rep. of Germany

Original language	English
Pages (from-to)	133-140
Journal	Physica Status Solidi (B) Basic Research
Volume	219
Issue number	1
DOIs	https://doi.org/10.1002/1521-3951(200005)219:1<133::AID-PSSB133>3.0.CO;2-8
Publication status	Published - May 2000

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This project was supported by the National Science Foundationand National Center for Research and Development of Superconductivity of China. Wegratefully acknowledge illuminating discussions with Prof. H.H. Wen and Prof. X.X.Yao.

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@article{aa518426bfb744b4b37e216cfff0b5f1,

title = "Vortex dynamic properties of vortex-liquid phase in YBa2Cu3O7-δ epitaxial films",

abstract = "The current-voltage characteristics (CVC) of YBa2Cu3O7-δ epitaxial films were determined at temperatures and magnetic fields covering the vortex-liquid region. Using functional fitting and scaling method, we derived the temperature and magnetic field dependences of the pinning potential U0(T, H) and critical current density JC(T, H), and current, temperature and magnetic field dependences of the effective pinning potential Ueff(H, T, J) from the CVC. It is shown that the nonlinear resistance region of the vortex-liquid phase displays a process from vortex plastic motion to free flow with the dynamic exponent changing from -0.5 to 0. {\textcopyright} 2000 WILEY-VCH Verlag Berlin GmbH, Fed. Rep. of Germany",

author = "L. Shan and Wang, \{Z. H.\} and Xu, \{X. N.\} and X. Jin and Shen, \{L. J.\} and Lam, \{C. C.\} and Chen, \{Y. S.\}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1002/1521-3951(200005)219:1<133::AID-PSSB133>3.0.CO;2-8",

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TY - JOUR

T1 - Vortex dynamic properties of vortex-liquid phase in YBa2Cu3O7-δ epitaxial films

AU - Shan, L.

AU - Wang, Z. H.

AU - Xu, X. N.

AU - Jin, X.

AU - Shen, L. J.

AU - Lam, C. C.

AU - Chen, Y. S.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2000/5

Y1 - 2000/5

N2 - The current-voltage characteristics (CVC) of YBa2Cu3O7-δ epitaxial films were determined at temperatures and magnetic fields covering the vortex-liquid region. Using functional fitting and scaling method, we derived the temperature and magnetic field dependences of the pinning potential U0(T, H) and critical current density JC(T, H), and current, temperature and magnetic field dependences of the effective pinning potential Ueff(H, T, J) from the CVC. It is shown that the nonlinear resistance region of the vortex-liquid phase displays a process from vortex plastic motion to free flow with the dynamic exponent changing from -0.5 to 0. © 2000 WILEY-VCH Verlag Berlin GmbH, Fed. Rep. of Germany

AB - The current-voltage characteristics (CVC) of YBa2Cu3O7-δ epitaxial films were determined at temperatures and magnetic fields covering the vortex-liquid region. Using functional fitting and scaling method, we derived the temperature and magnetic field dependences of the pinning potential U0(T, H) and critical current density JC(T, H), and current, temperature and magnetic field dependences of the effective pinning potential Ueff(H, T, J) from the CVC. It is shown that the nonlinear resistance region of the vortex-liquid phase displays a process from vortex plastic motion to free flow with the dynamic exponent changing from -0.5 to 0. © 2000 WILEY-VCH Verlag Berlin GmbH, Fed. Rep. of Germany

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DO - 10.1002/1521-3951(200005)219:1<133::AID-PSSB133>3.0.CO;2-8

M3 - RGC 21 - Publication in refereed journal

SN - 0370-1972

VL - 219

SP - 133

EP - 140

JO - Physica Status Solidi (B) Basic Research

JF - Physica Status Solidi (B) Basic Research

IS - 1

ER -