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Velocity of normal zone propagation in a superconductor with temperature-dependent properties and heat transfer

โœ Scribed by Yu.M. Lvovsky

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
447 KB
Volume
24
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

Normal zone propagation in a superconductor with temperaturedependent properties is investigated. The analytical expression is derived for the limiting (maximum) velocity, accounting for arbitrary dependences of thermal conductivity, specific heat and heat transfer on temperature.

The regularities revealed permit approximation of the velocity vs current dependence for the whole range of currents. The suggested approximate formula coincides accurately with exact (numerical) velocity values. A detailed systematic analysis is given of the effect of nonlinearities on the zone velocity.

The results of the work enable the zone velocity for real superconductors to be calculated easily resorting neither to cumbersome numerical computations nor to fitting parameters.

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