CONDUCTANCE PEAK DISTRIBUTIONS IN QUANTUM DOTS AT FINITE-TEMPERATURE - SIGNATURES OF THE CHARGING ENERGY

Citation
Y. Alhassid et al., CONDUCTANCE PEAK DISTRIBUTIONS IN QUANTUM DOTS AT FINITE-TEMPERATURE - SIGNATURES OF THE CHARGING ENERGY, Physical review. B, Condensed matter, 58(12), 1998, pp. 7524-7527
Citations number
21
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
58
Issue
12
Year of publication
1998
Pages
7524 - 7527
Database
ISI
SICI code
0163-1829(1998)58:12<7524:CPDIQD>2.0.ZU;2-6
Abstract
We derive the finite temperature conductance peak distributions and pe ak-to-peak correlations for quantum dots in the Coulomb blockade regim e assuming the validity of random-matrix theory. The distributions are universal, depending only on the symmetry class and the temperature m easured in units of the mean level spacing, a. When the temperature is comparable to Delta several resonances contribute to the same conduct ance peak and we find significant deviations from the previously known T much less than Delta distributions. In contrast to the T much less than Delta case, these distributions show a strong signature of the ch arging energy and charge quantization on the dot. [S0163-1829(98)50936 -8].