منابع مشابه
Phase diagrams of the metallic zigzag carbon nanotube
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متن کاملPhonon runaway in carbon nanotube quantum dots
Phonon runaway in carbon nanotube quantum dots" (2008). Other Nanotechnology Publications. Paper 93. We explore electronic transport in a nanotube quantum dot strongly coupled with vibrations and weakly with leads and the thermal environment. We show that the recent observation of anomalous conductance signatures in single-walled carbon nanotube quantum dots ͓B. can be understood quantitatively ...
متن کاملLocalized states in metallic carbon nanotube systems
W. Jaskólski Instytut Fizyki, Uniwersytet Miko laja Kopernika, Grudzia̧dzka 5, 87-100 Toruń, Poland Abstract We have found that purely metallic carbon nanotubes consisting of a nanometer-size metallic island connected to another two metallic nanotubes by topological defects, may present discrete energy levels, thus behaving as metallic quantum dots. When there is a symmetry gap around the Fermi ...
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We determine the level shifts induced by cotunneling in a Coulomb blockaded carbon nanotube quantum dot using leading-order quasidegenerate perturbation theory within a single nanotube “shell.” It is demonstrated that otherwise degenerate and equally tunnel coupled K and K ′ states are mixed by cotunneling and therefore split up in energy except at the particle-hole-symmetric midpoints of the C...
متن کاملCarbon Nanotube Quantum Dots as Thz Detectors
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ژورنال
عنوان ژورنال: ACS Nano
سال: 2008
ISSN: 1936-0851,1936-086X
DOI: 10.1021/nn8004069