The absorption of surface acoustic waves by an array of quantum wires

The interaction of a surface acoustic wave (SAW) with an array of parallel quantum wires (QWRs) is considered. To account for the screening of the SAW by the electrons in the QWRs the dielectric matrix formalism was used. If one compares our results with the experimental findings, one can conclude t hat the role of the magnetic field goes beyond a simple tuning of the subba nds. (C) 1999 Elsevier Science B.V. All rights reserved.