| Issue |
Europhys. Lett.
Volume 48, Number 1, October I 1999
|
|
|---|---|---|
| Page(s) | 66 - 72 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1999-00115-8 | |
| Published online | 01 September 2002 | |
Frequency scaling of photo-induced tunneling
1
Max-Planck-Institut für Physik komplexer Systeme Nöthnitzerstraße 38, D-01187 Dresden, Germany
2
Dipartimento di Fisica, INFM, Università di Genova via Dodecaneso 33, I-16146 Genova, Italy
3
I. Institut für Theoretische Physik, Universität Hamburg Jungiusstraße 9, D-20355 Hamburg, Germany
Received:
31
May
1999
Accepted:
4
August
1999
The DC current-voltage characteristics induced by a driving electric
field with frequency Ω 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 
(m integer) 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 
and 
, and depends on the
spatial shape of the driving field and the range of the interaction.
PACS: 71.10.Pm – Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.) / 72.20.Ht – High-field and nonlinear effects / 42.65.Ky – Harmonic generation, frequency conversion
© EDP Sciences, 1999
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