Transport Properties of YBa2Cu3O7-x/CaMoO3 Multilayers in a Magnetic Field
Resource
CHINESE JOURNAL OF PHYSICS, VOL. 36, NO. 2-11
Journal
CHINESE JOURNAL OF PHYSICS
Journal Volume
VOL. 36
Journal Issue
NO. 2-11
Pages
-
Date Issued
1998-04
Date
1998-04
Author(s)
Yang, H.C.
Chen, C.C.
Horng, H.E.
Wang, L.M.
DOI
20060927115952242995
Abstract
The transport properties of superconducting YBazCusOr_,/CaMoOs (YBCO/
CMO) multilayers in the mixed-state were measured to study the effects of magnetic
field, flux pinning and current density on the behaviors of Hall coefficient. The superconducting
critical temperature was reduced due to the presence of CM0 layers. The
longitudinal resistivities under a magnetic field parallel to the c-axis shows a thermally
activated behavior and pinning energy decreases with an increasing magnetic fields or
currents applied. The pinning abilities are also affected by the thickness of YBCO or
CM0 layers. The negative Hall coefficient in the mixed-state depends on the flux pinning
and decreases as the pinning force decreases. The results are consistent with the
Wang and Ting s model [lo].
Publisher
臺北市:國立臺灣大學物理系所
Type
journal article
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