In:
Acta Physica Sinica, Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, Vol. 47, No. 10 ( 1998), p. 1720-
Abstract:
The temperature dependence of the resistivity of an epitaxial YBa2Cu3O7-δ thin film has been measured in various magnetic fields up to 7T applied parallel to the c-axis near Tc. The result shows that the resistivity below Tc can be well fitted by thermally activation flux motion. The current density dependence of the effective pinning potential follows a logarithmic law proposed by Zeldov et al. The temperature and magnetic field dependence of the effective pinning potential follows U(H,T)=U0(1-T/Tc)H-α, with α=0.63, showing 2D behavior, It is consistent with the plastic deformation model of the flux-line lattice at flux-line-lattice dislocations.
Type of Medium:
Online Resource
ISSN:
1000-3290
,
1000-3290
Language:
Unknown
Publisher:
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Publication Date:
1998
detail.hit.zdb_id:
203490-6
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