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Polaronic effects in electron shuttling
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10.1063/1.3276063
/content/aip/journal/ltp/35/12/10.1063/1.3276063
http://aip.metastore.ingenta.com/content/aip/journal/ltp/35/12/10.1063/1.3276063
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of a single-electron transistor (SET) with vibrating quantum dot (QD). Here denotes the “shifted” (due to polaronic shift) bias-voltage-dependent fermionic level; is the energy of vibrational mode; are the coordinate-dependent tunneling amplitudes, and are the chemical potentials of the leads . Characteristic distances in the QD: is the distance (“gap”) between the leads; is the tunneling length of the electron in the QD; is the average coordinate of the shuttle.

Image of FIG. 2.
FIG. 2.

“Weak” shuttle instability. The increment of shuttle instability (in units of ) as a function of bias voltage for ; (solid line) and . The dotted line represents the result of Ref. 9 extended to the region of strong electromechanical coupling.

Image of FIG. 3.
FIG. 3.

“Strong” shuttle instability. All parameters are the same as in Fig. 2 except for the coupling constant .

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/content/aip/journal/ltp/35/12/10.1063/1.3276063
2009-12-31
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Polaronic effects in electron shuttling
http://aip.metastore.ingenta.com/content/aip/journal/ltp/35/12/10.1063/1.3276063
10.1063/1.3276063
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