Spin-dependent Fano effect through parallel-coupled double quantum dots

Based on the nonequilibrium Green' function method, the spin-dependent Fano effect through parallel-coupled double quantum dots has been investigated by taking account of both Rashba spin–orbit interaction and intradot Coulomb interaction. It is shown that the quantum interference through the b...

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Published inPhysics letters. A Vol. 373; no. 34; pp. 3085 - 3090
Main Authors Yin, Hai-Tao, Lü, Tian-Quan, Sun, Pu-nan, Liu, Xiao-Jie, Xue, Hui-Jie
Format Journal Article
LanguageEnglish
Published Elsevier B.V 17.08.2009
Subjects
Fano effect
Quantum dot
Spin-polarized transport
Spin–orbit interaction
Fano effect
Quantum dot
Spin-polarized transport
73.63.Kv
85.35.Ds
71.70.Ej
72.25.-b
Spin–orbit interaction
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Summary:Based on the nonequilibrium Green' function method, the spin-dependent Fano effect through parallel-coupled double quantum dots has been investigated by taking account of both Rashba spin–orbit interaction and intradot Coulomb interaction. It is shown that the quantum interference through the bonding, antibonding states and through their Coulomb blockade counterparts may result in two Breit–Wigner resonances and two Fano resonances in the conductance spectra. Moreover, the Fano lineshape of the two spin components can be modulated by Rashba spin–orbit interaction when the magnetic flux is switched on.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2009.06.043