Équipe de Recherche en Physique de l'Information Quantique


author = {M Ciorga and A Wensauer and M Pioro-Ladriere and M Korkusinski and J Kyriakidis and AS Sachrajda and P Hawrylak},
journal = {Phys Rev Lett},
title = {Collapse of the spin-singlet phase in quantum dots},
abstract = {We present experimental and theoretical results on a new regime in quantum dots in which the filling factor two-singlet state is replaced by new spin polarized phases. We make use of spin blockade spectroscopy to identify the transition to this new regime as a function of the number of electrons. The key experimental observation is a reversal of the phase in the systematic oscillation of the amplitude of Coulomb blockade peaks as the number of electrons is increased above a critical number. It is found theoretically that correlations are crucial to the existence of the new phases.},
affiliation = {Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada},
number = {25},
pages = {256804},
volume = {88},
year = {2002},
month = {Jan},
language = {English},
keywords = {Artificial Atoms, Coulomb, Magnetic-Fields, Addition Spectrum, Spectroscopy},
date-added = {2010-05-14 10:38:23 -0400},
date-modified = {2010-05-14 10:38:23 -0400},
doi = {10.1103/PhysRevLett.88.256804},
pmid = {000176554800038},
uri = {papers://2218479D-7AA1-43D5-8E9E-4EF38C7D1379/Paper/p762},
rating = {0}