Quantum conductance of a helically coiled carbon nanotube |
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| Affiliation: | 1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People''s Republic of China;2. International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, People''s Republic of China;1. Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna, Vienna, Austria;2. Department of Nephrology, CHU de Charleroi, Charleroi, Belgium;3. Department of Nephrology, University of Mainz, Mainz, Germany;4. Formación Médica Continuada Hospital Universitario La Paz, Madrid, Spain;5. Institute of Clinical Pediatrics, UCSC, Rome, Italy;6. Department of Pediatrics, University of Mainz, Mainz, Germany;7. Department of Paediatrics, University of Cambridge, Cambridge, England;8. Second Department of Internal Medicine, Charles University, Prague, Czech Republic;9. Institute of Human Genetics, University Hospital Eppendorf, Hamburg, Germany;10. Department of Paediatrics, University Hospital Haukeland, Bergen, Norway;11. Department of Medicine, University of Zürich, Zürich, Switzerland;12. Department of Haematology, Royal Free Hospital, London, England.;1. Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan;2. Faculty of Engineering, Shizuoka University, Hamamatsu 432-8561, Japan |
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| Abstract: | Using a π-orbital tight-binding model, we investigate the transport properties of a coiled carbon nanotube (also called carbon nanotube spring), which we construct by connecting carbon nanotubes periodically in three-dimensional (3D) space. The conductance is quantized due to the translational symmetry in the coiled direction. However, the conductance behaviors differ greatly from those of pristine metallic carbon nanotubes but similar to those of carbon nanotube superlattices. We explain that conductance behaviors of the coiled carbon nanotube. |
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