Dimensionality and lock-in transition in Tl2Ba2CuO6 single crystal
Abstract:The lock-in transition on good-quality over-doped Tl2Ba2CuO6 single crystal was investigated. The observed sharp drop, a dip and a peak together in the flux flow resistivity [iopmath latex="$\rho(\theta)$"] () [/iopmath] as the magnetic field angle [iopmath latex="$\theta$"] [/iopmath] with the c-axis approaches [iopmath latex="$90^\circ$"] 90° [/iopmath] have been ascribed to vortex phase transitions of different types. A demonstration of the inadequacy of the two models of the angular dependence of the upper critical fields to explain this phenomenon is presented here.
Document Type: Miscellaneous
Affiliations: 1: National Research Institute for Metals, 1-2-1 Sengen, Tsukuba, Ibaraki 305, Japan 2: The James Franck Institute, The University of Chicago, Chicago, IL 60637, USA 3: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
Publication date: July 1, 2001