Affordable Access

Publisher Website

Generation and amplification of confined acoustic phonons in a quantum wire via the Čerenkov effect

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
342
Identifiers
DOI: 10.1016/j.physleta.2005.05.036
Keywords
  • Nanoscience
Disciplines
  • Musicology
  • Physics

Abstract

Abstract We study the effect of generation and amplification of confined acoustic phonons by drifting electrons in an embedded quantum wire. A general formula for the phonon amplification coefficient α has been derived. Our calculations show that the quantum wire structure can be used for electrical generation of an intense high-frequency coherent phonon flux. The amplification coefficients of the order of cm −1 can be achieved in the sub-THz range for the example of Si 0.5Ge 0.5 quantum wires embeded in Si.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments