NEGATIVE ABSOLUTE CONDUCTIVITY IN QUANTUM WIRES

Citation
R. Mickevicius et al., NEGATIVE ABSOLUTE CONDUCTIVITY IN QUANTUM WIRES, Applied physics letters, 62(16), 1993, pp. 1970-1972
Citations number
9
Journal title
ISSN journal
00036951
Volume
62
Issue
16
Year of publication
1993
Pages
1970 - 1972
Database
ISI
SICI code
0003-6951(1993)62:16<1970:NACIQW>2.0.ZU;2-M
Abstract
The effect of negative absolute conductivity in quasi-one-dimensional quantum wire structures is obtained by the Monte Carlo simulation. Thi s negative conductivity is associated with inelastic optical phonon sc attering leading to an asymmetric electron distribution function estab lished under conditions of intensive electron photoinjection. Simulati on results suggest that quantum wires are ideal for the experimental o bservation of negative absolute conductivity. The oscillations of phot oconductivity as a function of injection energy can reveal the spectru m of optical phonons in quantum wires which differs considerably from that in bulk materials.