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Interplay between Kondo physics and spin-orbit coupling in carbon nanotube quantum dots

Abstract:

We investigate the influence of spin-orbit coupling on the Kondo effects in carbon nanotube quantum dots, using the numerical renormalization group technique. A sufficiently large spin-orbit coupling is shown to destroy the SU(4) Kondo effects at zero magnetic field, leaving only two SU(2) Kondo effects in the one- and three-electron Coulomb blockade valleys. On applying a finite magnetic field, two additional, spin-orbit induced SU(2) Kondo effects arise in the three- and two-electron valley...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.81.075437

Authors


Galpin, MR More by this author
Jayatilaka, FW More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Anders, FB More by this author
Journal:
Phys. Rev. B
Volume:
81
Issue:
7
Pages:
075437
Publication date:
2009-11-15
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:df265185-f24a-4dea-a916-0337c77cc84a
Source identifiers:
51956
Local pid:
pubs:51956
Language:
English
Keywords:

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