Coulomb blockade of spin-dependent shuttling

Hee Chul Park, Anatoli M Kadigrobov, Robert I Shekhter, Mats Jonson

Research output: Contribution to journalArticle

Abstract

We show that nanomechanical shuttling of single electrons may enable qualitatively new functionality if spin-polarized electrons are injected into a nanoelectromechanical single-electron tunneling (NEM-SET) device. This is due to the combined effects of spin-dependent electron tunneling and Coulomb blockade of tunneling, which are phenomena that occur in certain magnetic NEM-SET devices. Two effects are predicted to occur in such structures. The first is a reentrant shuttle instability, by which we mean the sequential appearance, disappearance and again the appearance of a shuttle instability as the driving voltage is increased (or the mechanical dissipation is diminished). The second effect is an enhanced spin polarization of the nanomechanically assisted current flow.
Original languageEnglish
Pages (from-to)1071-1077
Number of pages7
JournalLow Temperature Physics
Volume39
Issue number12
DOIs
Publication statusPublished - Dec 2013

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electron tunneling
electrons
dissipation
electric potential
polarization

Keywords

  • nanoelectromechanics
  • single-electron tunneling
  • Coulomb blockade

Cite this

Park, H. C., Kadigrobov, A. M., Shekhter, R. I., & Jonson, M. (2013). Coulomb blockade of spin-dependent shuttling. Low Temperature Physics, 39(12), 1071-1077. https://doi.org/10.1063/1.4830420
Park, Hee Chul ; Kadigrobov, Anatoli M ; Shekhter, Robert I ; Jonson, Mats. / Coulomb blockade of spin-dependent shuttling. In: Low Temperature Physics. 2013 ; Vol. 39, No. 12. pp. 1071-1077.
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Park, HC, Kadigrobov, AM, Shekhter, RI & Jonson, M 2013, 'Coulomb blockade of spin-dependent shuttling', Low Temperature Physics, vol. 39, no. 12, pp. 1071-1077. https://doi.org/10.1063/1.4830420

Coulomb blockade of spin-dependent shuttling. / Park, Hee Chul; Kadigrobov, Anatoli M; Shekhter, Robert I; Jonson, Mats.

In: Low Temperature Physics, Vol. 39, No. 12, 12.2013, p. 1071-1077.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Coulomb blockade of spin-dependent shuttling

AU - Park, Hee Chul

AU - Kadigrobov, Anatoli M

AU - Shekhter, Robert I

AU - Jonson, Mats

N1 - Also published in Fiz. Niz. Temp. 39 (12) 1373-1380 (2013).

PY - 2013/12

Y1 - 2013/12

N2 - We show that nanomechanical shuttling of single electrons may enable qualitatively new functionality if spin-polarized electrons are injected into a nanoelectromechanical single-electron tunneling (NEM-SET) device. This is due to the combined effects of spin-dependent electron tunneling and Coulomb blockade of tunneling, which are phenomena that occur in certain magnetic NEM-SET devices. Two effects are predicted to occur in such structures. The first is a reentrant shuttle instability, by which we mean the sequential appearance, disappearance and again the appearance of a shuttle instability as the driving voltage is increased (or the mechanical dissipation is diminished). The second effect is an enhanced spin polarization of the nanomechanically assisted current flow.

AB - We show that nanomechanical shuttling of single electrons may enable qualitatively new functionality if spin-polarized electrons are injected into a nanoelectromechanical single-electron tunneling (NEM-SET) device. This is due to the combined effects of spin-dependent electron tunneling and Coulomb blockade of tunneling, which are phenomena that occur in certain magnetic NEM-SET devices. Two effects are predicted to occur in such structures. The first is a reentrant shuttle instability, by which we mean the sequential appearance, disappearance and again the appearance of a shuttle instability as the driving voltage is increased (or the mechanical dissipation is diminished). The second effect is an enhanced spin polarization of the nanomechanically assisted current flow.

KW - nanoelectromechanics

KW - single-electron tunneling

KW - Coulomb blockade

U2 - 10.1063/1.4830420

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JO - Low Temperature Physics

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Park HC, Kadigrobov AM, Shekhter RI, Jonson M. Coulomb blockade of spin-dependent shuttling. Low Temperature Physics. 2013 Dec;39(12):1071-1077. https://doi.org/10.1063/1.4830420