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Tunable coulomb blockade and giant coulomb blockade magnetoresistance in a double quantum dot system

✍ Scribed by X.-G. Zhang; T. Xiang

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
120 KB
Volume
112
Category
Article
ISSN
0020-7608

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✦ Synopsis

Abstract

We propose a Hubbard model to describe the tunneling effect of electrons in a double quantum dot system connected in the parallel circuit configuration to electrodes. The change in the interdot coupling is shown to dramatically influence the Coulomb blockade (CB) properties. For magnetic double dots, the interdot coupling can be tuned by the external magnetic field, leading to a giant CB magnetoresistance. Possible detection of this effect in organic magnetic molecular systems is discussed. Β© 2011 Wiley Periodicals, Inc. Int J Quantum Chem, 2012

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