PERSISTENT CURRENT IN A MESOSCOPIC SEMICONDUCTOR RING WITH ELECTRON-PHONON INTERACTION IN THE 2-BAND MODEL

Authors
LI TZ WANG KL QIN G YANG JL
Citation
Tz. Li et al., PERSISTENT CURRENT IN A MESOSCOPIC SEMICONDUCTOR RING WITH ELECTRON-PHONON INTERACTION IN THE 2-BAND MODEL, Journal of physics. Condensed matter, 10(2), 1998, pp. 319-326
Citations number
17
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
10
Issue
2
Year of publication
1998
Pages
319 - 326
Database
ISI
SICI code
0953-8984(1998)10:2<319:PCIAMS>2.0.ZU;2-0
Abstract
We have studied, in the framework of the two-band lattice model, the p ersistent current in a one-dimensional mesoscopic semiconductor ring t hreaded by a flux phi, taking into consideration the electron-phonon i nteraction at absolute zero temperature. The current is a continuous f unction and periodic in phi, with a flux quantum phi(0), without jumps occurring when each period is over. The interband coupling enhances t he current while the electron-phonon interaction suppresses it.