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Acoustomagnetoelectric effect in a superlattice

Technical Report:

Abstract

The acoustomagnetoelectric effect (AME) in a semiconductor superlattice (SL) has been studied for an acoustic wave in the region ql >> 1. The expression for the acoustomagnetoelectric current j{sup AME} was calculated in the {tau} = constant approximation. The result indicates that the existence of j{sup AME} in SL may be due to the finite gap band and the periodicity of the electron spectrum. It is shown, in particular, that when {omega}{sub q} > {Delta} and {Delta} >> T ({omega}{sub q} is the frequency of the acoustic phonons; 2{Delta} is the miniband width of SL and T is the temperature measured in energy unit) the SL behaves as a monopolar semiconductor bulk material and in that case j{sup AME} {yields} 0. (author). 10 refs.
Authors:
Mensah, S Y; Allotey, F K.A.; [1]  Adjepong, S K [2] 
  1. International Centre for Theoretical Physics, Trieste (Italy)
  2. Cape Coast Univ., Cape Coast (Ghana). Dept. of Physics
Publication Date:
Sep 01, 1994
Product Type:
Technical Report
Report Number:
IC-94/298
Reference Number:
SCA: 661300; 665000; PA: AIX-26:012321; EDB-95:032055; SN: 95001324707
Resource Relation:
Other Information: PBD: Sep 1994
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; SEMICONDUCTOR MATERIALS; MAGNETOACOUSTICS; SUPERLATTICES; BAND THEORY; ELECTRIC CURRENTS; PHONONS; SOUND WAVES; WAVE PROPAGATION; 661300; 665000; OTHER ASPECTS OF PHYSICAL SCIENCE; PHYSICS OF CONDENSED MATTER
OSTI ID:
10112449
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE95613445; TRN: XA9438448012321
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
9 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Mensah, S Y, Allotey, F K.A., and Adjepong, S K. Acoustomagnetoelectric effect in a superlattice. IAEA: N. p., 1994. Web.
Mensah, S Y, Allotey, F K.A., & Adjepong, S K. Acoustomagnetoelectric effect in a superlattice. IAEA.
Mensah, S Y, Allotey, F K.A., and Adjepong, S K. 1994. "Acoustomagnetoelectric effect in a superlattice." IAEA.
@misc{etde_10112449,
title = {Acoustomagnetoelectric effect in a superlattice}
author = {Mensah, S Y, Allotey, F K.A., and Adjepong, S K}
abstractNote = {The acoustomagnetoelectric effect (AME) in a semiconductor superlattice (SL) has been studied for an acoustic wave in the region ql >> 1. The expression for the acoustomagnetoelectric current j{sup AME} was calculated in the {tau} = constant approximation. The result indicates that the existence of j{sup AME} in SL may be due to the finite gap band and the periodicity of the electron spectrum. It is shown, in particular, that when {omega}{sub q} > {Delta} and {Delta} >> T ({omega}{sub q} is the frequency of the acoustic phonons; 2{Delta} is the miniband width of SL and T is the temperature measured in energy unit) the SL behaves as a monopolar semiconductor bulk material and in that case j{sup AME} {yields} 0. (author). 10 refs.}
place = {IAEA}
year = {1994}
month = {Sep}
}