Équipe de Recherche en Physique de l'Information Quantique


author = {Deblock, R., Noat, Y., Bouchiat, H., Reulet, B., Mailly, D.},
title = {Measurements of Flux-Dependent Screening in Aharonov-Bohm Rings},
journal = {Physical Review Letters},
year = {2000},
volume = {84},
number = {23},
pages = {5379-5382},
note = {cited By (since 1996) 15},
url = {http://www.scopus.com/inward/record.url?eid = 2-s2.0-0000238760&partnerID = 40&md5 = 85c01e716f41042347c8bcfca1f84ace},
affiliation = {Laboratoire de Physique des Solides, Associé au CNRS, Université Paris-Sud, 91405, Orsay, France; CNRS Lab. Microstructure M., 196 avenue Ravera, 92220, Bagneux, France},
abstract = {In order to investigate the effect of electronic phase coherence on screening we have measured the flux-dependent polarizability of isolated mesoscopic rings at 350 MHz. At low temperatures (below 100 mK) both the nondissipative and the dissipative parts of the polarizability exhibit flux oscillations with a period of one-half a flux quantum in a ring. The sign and amplitude of the effect are in good agreement with recent theoretical predictions. The observed positive magnetopolarizability corresponds to an enhancement of screening when time reversal symmetry is broken. The effect of electronic density and temperature are also measured.},
document_type = {Article},
source = {Scopus}}