Proposal for a single-molecule field-effect transistor for phonons

Details Proposal for a single-molecule field-effect transistor for phonons Proposal for a single-molecule field-effect transistor for phonons

2010-06-29

arxiv.org/abs/1006.5647v1

Physical Review B 81, 012302 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.81.012302

We propose a practical realization of a field-effect transistor for phonons. Our device is based on a single ionic polymeric molecule and it gives modulations as large as -25% in the thermal conductance for feasible temperatures and electric field magnitudes. Such effect can be achieved by reversibly switching the acoustic torsion mode into an optical mode through the coupling of an applied electric field to the dipole moments of the monomers. This device can pave the way to the future development of phononics at the nanoscale or molecular scale.

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