Title :
Observation of a transverse voltage in the mixed state of YBCO thin films
Author :
Francavilla, T.L. ; Cukauskas, E.J. ; Allen, L.H. ; Broussard, P.R.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
The occurrence of a transverse voltage peak has been observed in YBCO thin films. This phenomenon occurs under conditions of temperature and current in the earth´s magnetic field such that the films are in the mixed state. The magnitude of the peak was found to scale with both temperature and current, and exhibited a Sin(/spl theta/) orientational dependence measured between the film-substrate and the position of the measurement electrodes on the film surface. These observations are similar to observations made in conventional superconducting thin films such as Nb, NbN, NbCN, and PbBi.<>
Keywords :
barium compounds; high-temperature superconductors; mixed state; superconducting thin films; voltage measurement; yttrium compounds; YBCO thin films; YBa/sub 2/Cu/sub 3/O/sub 7/; current dependence; earth´s magnetic field; mixed state; orientational dependence; temperature dependence; transverse voltage peak; Current measurement; Earth; Magnetic field measurement; Magnetic films; Position measurement; Superconducting films; Temperature; Transistors; Voltage; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
