Spin transport across carbon nanotube quantum dots
نویسندگان
چکیده
منابع مشابه
Spin transport across carbon nanotube quantum dots
We investigate linear and nonlinear transport in interacting single-wall carbon nanotubes (SWCNTs) that are weakly attached to ferromagnetic leads. For the reduced density matrix of a SWCNT quantum dot, equations of motion which account for an arbitrarily vectored magnetisation of the contacts are derived. We focus on the case of large diameter nanotubes where exchange effects emerging from sho...
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We present a low energy-theory for non-linear transport in finite-size interacting single-wall carbon nanotubes. It is based on a microscopic model for the interacting pz electrons and successive bosonization. We consider weak coupling to the leads and derive equations of motion for the reduced density matrix. We focus on the case of large-diameter nanotubes where exchange effects can be neglec...
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S. Weiss,1 E. I. Rashba,2,3,4 F. Kuemmeth,2 H. O. H. Churchill,2 and K. Flensberg1 1Niels Bohr Institute and Nano-Science Center, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark 2Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 3Center for Nanoscale Systems, Harvard University, Cambridge, Massachusetts 02138, USA 4Department of Physics, Lou...
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Electron transport in single-walled carbon nanotubes (SWCNTs) is extremely sensitive to environmental effects. SWCNTs experiencing an inhomogeneous environment are effectively subjected to a disorder potential, which can lead to localized electronic states. An important element of the physical picture of such states localized on the nanometer-scale is the existence of a local vibronic mainfold ...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2007
ISSN: 1367-2630
DOI: 10.1088/1367-2630/9/9/348