TY - JOUR
T1 - Persistent currents in annuli
T2 - Effects of disorder and Coulomb interaction
AU - Jeon, Gun Sang
AU - Choi, M. Y.
PY - 1996/6/10
Y1 - 1996/6/10
N2 - We investigate the persistent current of spinless electrons in a mesoscopic annulus threaded by a magnetic flux. As in the tight-binding systems, the excitations in the radial direction generate additional discontinuities in the persistent current, which are rounded off by disorder. The Coulomb interaction, the effects of which are investigated within the Hartree-Fock approximation, is found to suppress the persistent current in the presence of weak disorder. For strong disorder corresponding to the diffusive regime, the persistent current is enhanced by weak interactions.
AB - We investigate the persistent current of spinless electrons in a mesoscopic annulus threaded by a magnetic flux. As in the tight-binding systems, the excitations in the radial direction generate additional discontinuities in the persistent current, which are rounded off by disorder. The Coulomb interaction, the effects of which are investigated within the Hartree-Fock approximation, is found to suppress the persistent current in the presence of weak disorder. For strong disorder corresponding to the diffusive regime, the persistent current is enhanced by weak interactions.
UR - http://www.scopus.com/inward/record.url?scp=0542408021&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/8/24/010
DO - 10.1088/0953-8984/8/24/010
M3 - Article
AN - SCOPUS:0542408021
SN - 0953-8984
VL - 8
SP - 4429
EP - 4440
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 24
ER -