On the Role of Electron Quantum Tunneling in Charging of Dust Grains in Complex Plasma

Authors

  • Yu.O. Tyshetskiy University of Sydney
  • S.V. Vladimirov University of Sydney

DOI:

https://doi.org/10.15407/ujpe56.12.1329

Keywords:

-

Abstract

The role of the quantum tunneling effect in the electron accretion current onto a negatively charged grain immersed in isotropic plasma is analyzed, within the quasiclassic approximation, for different plasma electron distribution functions, plasma parameters, and grain sizes. It is shown that the contribution of the quantum tunneling into the grain charging is small (negligible) for relatively large (micron-sized) dust grains in plasmas with electron temperatures of the order of a few eV, but becomes important for nano-sized dust grains (tens to hundreds nm in diameter) in cold and ultracold plasmas (electron temperatures ~ tens to hundreds of Kelvin degrees), especially in plasmas with depleted high-energy "tails" in the electron energy distribution.

References

S.V. Vladimirov and K.N. Ostrikov, Phys. Rep. 393, 175 (2004).

https://doi.org/10.1016/j.physrep.2003.12.003

A.G. Khrapak, S.A. Khrapak, V.I. Molotkov, and O.F. Petrov, Physics-Uspekhi 47, 447 (2004).

https://doi.org/10.1070/PU2004v047n05ABEH001689

P.K. Shukla and B. Eliasson, Rev. Mod. Phys. 81, 25 (2009).

https://doi.org/10.1103/RevModPhys.81.25

J.E. Allen, Phys. Scripta 45, 497 (1992).

https://doi.org/10.1088/0031-8949/45/5/013

Y.P. Raizer, Gas Discharge Physics (Springer, Berlin, 1991).

https://doi.org/10.1007/978-3-642-61247-3

D.R. Flower and M.J. Middleton, Mon. Not. R. Astron. Soc. 352, 837 (2004).

https://doi.org/10.1111/j.1365-2966.2004.07969.x

L.D. Landau and E.M. Lifshits, Quantum Mechanics (Pergamon, New York, 1980).

J.L. Roberts, C.D. Fertig, M.J. Lim, and S.L. Rolston, Phys. Rev. Lett. 92, 253003 (2004).

https://doi.org/10.1103/PhysRevLett.92.253003

B.P. Pandey and S.V. Vladimirov, Astrophys. J. 664, 942 (2007).

https://doi.org/10.1086/518118

V.A. Godyak and R.B. Piejak, Phys. Rev. Lett. 65, 996 (1990).

https://doi.org/10.1103/PhysRevLett.65.996

M.S. Barnes, J.C. Forster, and J.H. Keller, Appl. Phys. Lett. 62, 2622 (1993).

https://doi.org/10.1063/1.109265

V.N. Tsytovich, G.E. Morfill, S.V. Vladimirov, and H. Thomas, Elementary Physics of Complex Plasmas (Springer, Berlin, 2008).

https://doi.org/10.1007/978-3-540-29003-2

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Published

2022-02-02

How to Cite

Tyshetskiy, Y., & Vladimirov, S. (2022). On the Role of Electron Quantum Tunneling in Charging of Dust Grains in Complex Plasma. Ukrainian Journal of Physics, 56(12), 1329. https://doi.org/10.15407/ujpe56.12.1329

Issue

Section

Plasmas and gases