Energy Exchanges in Resonant Tunneling

Our example is a double-barrier with equal barrier widths of 30 A, and a well of width 30 A between them. The mass of the incident particle, the barrier heights, the frequency and the field amplitude have already been given. 

We end with a word about possible inferences for an experimental study of field-assisted resonant tunneling. We have observed that essentially the same conclusions can be drawn if the double-barrier potential is affected by a bias field. The discussion is therefore applicable to situations similar to those mentioned in the Introduction, 7]. If the quanta are phonons or plasmons with different frequencies for the various interfaces in the sample, only the frequencies characteristic of the most external discontinuities should be involved. 

We thank Professor Palma for useful discussions. CPV thanks the Commu-nidad de Madrid for financial support. OA and RL acknowledge support from the Comite Evaluation-Orientation de la Cooperation Scientifique (ECOS, contract no M98 P03) for financing a visit to the Institute de Fi sica of the University of Puebla, Mexico, where part of this work was done. 

ADVANCES IN QUANTUM CHEMISTRY, VOLUME 40 Copyright 2001 by Academic Press. All rights of reproduction in any form reserved. 

2 General discussion of spin-uncoupling in chemical reactions 3 

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