Abstract
The electron tunneling via an extrinsic bridge atom by a superexchange mechanism is considered. It is shown that the bridge effect must be described by a transition amplitude gain, whose exponential rise with the bridge length is caused by subbarrier scattering on the bridge particles. A total operator of scattering on a linear bridge is expressed through operators of scattering on individual particles of the bridge.
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Kozhushner, M.A., Bolgov, D.I., Muryasov, R.R. et al. Multiple Subbarrier Scattering: A Theory for the Bridge Effect. Russian Journal of Electrochemistry 39, 74–85 (2003). https://doi.org/10.1023/A:1021971714476
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DOI: https://doi.org/10.1023/A:1021971714476