ISSN:
1434-6036
Keywords:
PACS. 73.23.Hk Coulomb blockade; single-electron tunneling – 73.40.Gk Tunneling – 73.50.-h Electronic transport phenomena in thin films
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: Artificial molecules, namely laterally coupled quantum dots with a three-dimensional spherical confinement potential well of radius R and depth V 0, were studied by the unrestricted Hartree-Fock-Roothaan (UHFR) method. By varying the distance d between the centers of the two coupled quantum dots, the transition from the strong coupling situation to the weak one is realized. Hund's rule, suitable for a single quantum dot is destroyed in certain conditions in the artificial molecule. For example, in the few-electron system of the strongly coupled quantum-dot molecule, a transformation of spin configuration has been found.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epjb/e2002-00272-0
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