Volume 73, Number 4, February 2006
|Page(s)||574 - 580|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||13 January 2006|
Analysis of shot noise suppression in mesoscopic cavities in a magnetic field
Dipartimento di Ingegneria dell'Informazione, Università di Pisa Via Caruso 16, I-56122 Pisa, Italy
Accepted: 29 December 2005
We present a numerical investigation of shot noise suppression in mesoscopic cavities and an intuitive semiclassical explanation of the behavior observed in the presence of an orthogonal magnetic field. In particular, we conclude that the decrease of shot noise for increasing magnetic field is the result of the interplay between the diameter of classical cyclotron orbits and the width of the apertures defining the cavity. Good agreement with published experimental results is obtained, without the need of introducing fitting parameters.
PACS: 72.70.+m – Noise processes and phenomena / 73.23.-b – Electronic transport in mesoscopic systems / 75.75.+a – Magnetic properties of nanostructures
© EDP Sciences, 2006
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