The current-voltage characteristics of a superconducting disk with the Corbino current supply at an external static magnetic field of 1000 Oe have been calculated within the two-dimensional model of a layered high-temperature superconductor. The field strength on several coaxial rings of the sample has been obtained and the critical currents for three values of the diameters, temperatures, and densities of defects have been evaluated. The effect of the concentration of point defects and temperature on the velocity of Abrikosov vortices has been studied.
机构:Electricity Division, Electronics and Electrical Engineering Division, Technology Administration, U.S. Department of Commerce, National Institute of Standards and Technology, Gaithersburg
ELMQUIST, RE
DZIUBA, RF
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机构:Electricity Division, Electronics and Electrical Engineering Division, Technology Administration, U.S. Department of Commerce, National Institute of Standards and Technology, Gaithersburg