Soliton Tunneling Transistor

Details Soliton Tunneling Transistor Soliton Tunneling Transistor

2001-05-21

arxiv.org/abs/cond-mat/0105409v3

Physics

Condensed Matter

Strongly Correlated Electrons

Submitted to Phys. Rev. B, October 2001. 16 tex pages, 7 eps figures

Scientific paper

We report on a macroscopic version of the single-electron transistor (SET), which we call the soliton tunneling transistor (STT). The STT, consists of a gate capacitor coupled to a NbSe$_{3}$ crystal with a charge density wave (CDW). The current-voltage characteristic of an STT is periodically modulated by the gate voltage, as in the SET,except that the periodicity corresponds to a macroscopic displacement charge. These results appear to be consistent with time- correlated quantum nucleation of solitons and antisolitons [see Phys. Rev. Lett. {\bf 84}, 1555 (2000)]. We discuss how the microscopic degrees of freedom within the condensate might enable quantum behavior at high temperatures, and report on preliminary modeling studies using a coupled-phase Hamiltonian to interpret our results.

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