High energy photon absorption in superconductors results in branch imbalance potential

Author

van Vechten, D. ; Wood, K.S. ; Koller, D. ; Gulian, A.M. ; Nikogosian, V.R.

Author_Institution

Naval Res. Lab., Washington, DC, USA

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

3419

Lastpage

3421

Abstract

When a superconductor is disturbed by a high energy deposition, an asymmetry in the distributions of electron-like and hole-like excitations results. This manifests itself as a voltage output, which can be measured in different ways. Here we study the behavior of this quantity using the kinetic equations to model the energy cascade. Special attention is paid to the similarity and differences between the behaviors of normal metals and superconductors. The particular case of tantalum is considered in the modeling.

Keywords

chemical potential; kinetic theory; modelling; quasiparticles; radiation effects; superconductivity; tantalum; type II superconductors; Ta; branch imbalance potential; chemical potential; electron-like excitation distribution asymmetry; energy cascade; high energy photon absorption; hole-like excitation distribution asymmetry; kinetic equations; modeling; quasiparticle contributions; superconductors; voltage output; Absorption; Charge carrier processes; Equations; Kinetic theory; Laboratories; Physics; Production; Quantum mechanics; Superconductivity; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.622115

Filename

622115