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11. 


Frequency scaling of photo-induced tunneling



G. Cuniberti, A. Fechner, M. Sassetti, and B. Kramer

Europhysics Letters 48, 66 (1999)

The DC current-voltage characteristics, induced by a driving electric field with frequency , of a one dimensional electron channel with a tunnel barrier is calculated. Electron-electron interaction of finite-range is taken into account. For intermediate interaction strengths, the non-linear differential conductance shows cusp-like minima at bias voltages integer multiples of / e that are a consequence of the finite non-zero range of the interaction but are independent of the shape of the driving electric field. However, the frequency-scaling of the photo-induced current shows a cross-over between -1 and -2, and depends on the spatial shape of the driving field and the range of the interaction.



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doi absolute link10.1209/epl/i1999-00115-8
online abstract at the publisher site
publisher site
online abstractarXiv preprint: cond-mat/9909084
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mpi-pks/9905013
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IF(1999): 2.214


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