Hydrostatic-pressure induced phase transition of phonons in single-walled nanotubes |
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| Authors: | Feng Peng Meng Qingchao |
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| Affiliation: | aPhysics Department, Beijing University of Science and Technology, Beijing 100083, China |
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| Abstract: | We study the effect of the hydrostatic pressure on the phonons in single-walled carbon nanotubes (SWNTs) in a magnetic field. We calculate the magnetic moments of the phonons using a functional integral technique, and find that the phonons in SWNTs undergo a pressure-induced phase transition from the paramagnetic phase to the diamagnetic phase under hydrostatic pressure 2 GPa. We explain the mechanism of generating this phase transition. |
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| Keywords: | Phonon phase transition Electron– phonon interaction Hydrostatic pressure Nanotubes |
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