Bernoulli effect and contact potential difference in superconductors
A. N. Omel’yanchukPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar’kovS. I. Beloborod’koPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR , Khar’kov
ABI
Abstract
An expression is derived for the Bernoulli potential that arises in superconductors with an inhomogeneous current distribution. The expression is valid for arbitrary temperatures and superfluid velocities. In the superconductor–dielectric–superconductor system we consider the Bernoulli effect, which manifests itself in a contact potential difference between the superconductors. The potential difference is determined by the currents flowing through one plate of the contact and can be measured with a voltmeter in the quasistationary regime.
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