The influence of many-particle interaction on tunneling characteristics in low dimensional structures is analyzed theoretically and investigated experimentally by means of STM/STS methods. It is shown that indirect interaction (trough band states of semiconductors) can often lead to increased tunneling conductivity for bias range where the direct interaction between impurity states is not significant. New method for preparation of electronic states with definite spin configuration on neighboring atoms is suggested. The energy splitting of opposite spin electrons can be about 0.5 - 1 eV. The different types of tunneling conductivity behavior in ultra small junction with superconductors is analyzed.

Date Published: 11 June 2003
PDF: 3 pages
Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003);

Published in SPIE Proceedings Vol. 5023:
10th International Symposium on Nanostructures: Physics and Technology
Zhores I. Alferov; Leo Esaki, Editor(s)