Mechanisms for extra conductance plateaus in quantum wires - art. no. 033315

Authors
Hirose, K Li, SS Wingreen, NS
Citation
K. Hirose et al., Mechanisms for extra conductance plateaus in quantum wires - art. no. 033315, PHYS REV B, 6303(3), 2001, pp. 3315
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6303
Issue
3
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010115)6303:3<3315:MFECPI>2.0.ZU;2-I
Abstract
Spin-density-functional theory is employed to calculate the conductance G t hrough a quasi-one-dimensional quantum wire. In addition to the usual subba nd quantization plateaus at G=n(2e(2)/h), we find additional structures at (n+1/2)(2e(2)/h). The extra structures appear whether or not the electrons in the wire spin polarize. However, only the spin-polarized case reproduces the experimental temperature and magnetic field dependences.