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Two-channel Kondo phases in coupled quantum dots

Abstract:

We investigate systems comprising chains and rings of quantum dots, coupled to two metallic leads. Such systems allow to study the competition between orbital and spin degrees of freedom in a nanodevice, and the effect this subtle interplay has on two-channel Kondo (2CK) physics. We demonstrate that a rich range of strongly correlated electron behaviour results, with non-Fermi liquid 2CK phases and non-trivial phase transitions accessible. We employ physical arguments and the numerical ren...

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Institution:
University of Oxford
Research group:
Prof. David E. Logan
Oxford college:
Balliol College
Department:
Mathematical,Physical & Life Sciences Division - Chemistry - Physical and Theoretical Chemistry Laboratory
Role:
Author

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Role:
Supervisor
Publication date:
2009
Type of award:
DPhil
Level of award:
Doctoral
Awarding institution:
Oxford University, UK
URN:
uuid:3d4e9d86-794c-441c-9d4b-20e6f1bd1de1
Local pid:
ora:9438

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