Acoustic phonon-based interaction between coplanar quantum circuits in magnetic field
Mesoscale and Nanoscale Physics
2010-11-18 v2
Abstract
We explore the acoustic phonon-based interaction between two neighboring coplanar circuits containing semiconductor quantum point contacts in a perpendicular magnetic field B. In a drag-type experiment, a current flowing in one of the circuits (unbiased) is measured in response to an external current in the other. In moderate B the sign of the induced current is determined solely by the polarity of B. This indicates that the spatial regions where the phonon emission/reabsorption is efficient are controlled by magnetic field. The results are interpreted in terms of non-equilibrium transport via skipping orbits in two-dimensional electron system.
Cite
@article{arxiv.1008.0963,
title = {Acoustic phonon-based interaction between coplanar quantum circuits in magnetic field},
author = {M. G. Prokudina and V. S. Khrapai and S. Ludwig and J. P. Kotthaus and H. P. Tranitz and W. Wegscheider},
journal= {arXiv preprint arXiv:1008.0963},
year = {2010}
}
Comments
as published