Giant shot noise due to mechanical transportation of spin-polarized electrons

L. Y. Gorelik, S. I. Kulinich, R. I. Shekhter, M. Jonson, V. M. Vinokur

Research output: Contribution to journalArticle

Abstract

We show that single-electron "shuttling" of electrons in a magnetic nanoelectromechanical single-electron transistor device can be an efficient tool for studying electron spin-flip relaxation on quantum dots. The reason is traced to a spin blockade of the mechanically aided shuttle current that occurs in devices with highly polarized and collinearly magnetized leads. This results in giant peaks in the shot-noise spectral function, wherein the peak heights are only limited by the rate of electronic spin flips. Therefore, we show that nanomechanical spectroscopy of the spin-flip rate is possible, allowing spin-flip relaxation times as long as 10 µs to be detected. © 2008 The American Physical Society.

Original languageEnglish
Article number174304
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume77
Issue number17
DOIs
Publication statusPublished - 29 May 2008

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shot noise
electrons
single electron transistors
electron spin
relaxation time
quantum dots
electronics
spectroscopy

Cite this

Gorelik, L. Y. ; Kulinich, S. I. ; Shekhter, R. I. ; Jonson, M. ; Vinokur, V. M. / Giant shot noise due to mechanical transportation of spin-polarized electrons. In: Physical Review B: Condensed Matter and Materials Physics. 2008 ; Vol. 77, No. 17.
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Giant shot noise due to mechanical transportation of spin-polarized electrons. / Gorelik, L. Y.; Kulinich, S. I.; Shekhter, R. I.; Jonson, M.; Vinokur, V. M.

In: Physical Review B: Condensed Matter and Materials Physics, Vol. 77, No. 17, 174304, 29.05.2008.

Research output: Contribution to journalArticle

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AU - Kulinich, S. I.

AU - Shekhter, R. I.

AU - Jonson, M.

AU - Vinokur, V. M.

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