Measurement of the energy dependence of phase relaxation by single electron tunneling

Konig, P and Konemann, J and Schmidt, T and McCann, E and Falko, Vladimir and Haug, R J (2001) Measurement of the energy dependence of phase relaxation by single electron tunneling. In: Proceedings of the 25th International Conference on the Physics of Semiconductors : Osaka, Japan, September 17-22, 2000 :. Springer Verlag, OSAKA, pp. 1337-1338. ISBN 3-540-41778-8

Abstract

Single electron tunneling through a single impurity level is used to probe the fluctuations of the local density of states in the emitter. The energy dependence of quasiparticle relaxation in the emitter can be extracted from the damping of the fluctuations of the local density of states (LDOS). At larger magnetic fields Zeeman splitting is observed.