Abstract:
:We simulated the behavior of suspended carbon nanotube resonators over a broad range of temperatures to explore the physics of semiflexible polymers in underdamped environments. We find that thermal fluctuations induce strong coupling between resonance modes. This effect leads to spectral fluctuations that readily account for the experimentally observed quality factors Q ∼ 100 at 300 K. Using a mean-field approach to describe fluctuations, we analytically calculate Q and frequency shifts in tensioned and buckled carbon nanotubes and find excellent agreement with simulations.
journal_name
Proc Natl Acad Sci U S Aauthors
Barnard AW,Sazonova V,van der Zande AM,McEuen PLdoi
10.1073/pnas.1216407109subject
Has Abstractpub_date
2012-11-20 00:00:00pages
19093-6issue
47eissn
0027-8424issn
1091-6490pii
1216407109journal_volume
109pub_type
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