Quadratic friction model for cluster bombardment of molecular solids

Barbara J. Garrison; Kathleen E. Ryan; Michael F. Russo; Edward J. Smiley; Zbigniew Postawa

doi:10.1021/jp072290c

Quadratic friction model for cluster bombardment of molecular solids

Barbara J. Garrison, Kathleen E. Ryan, Michael F. Russo, Edward J. Smiley, Zbigniew Postawa

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12 Scopus citations

Abstract

Molecular dynamics simulations of energetic cluster bombardment (C ₂₀, C ₆₀, C ₁₂₀, C ₁₈₀) are performed in the range of 5-20 keV on a solid benzene substrate. The goal is to study the trends exhibited by these bombardment events and to develop a simple analytical model that explains the general dynamics associated with cluster projectiles. These results indicate that the dynamics of these clusters can be described by a macroscale quadratic friction model and thus can provide an interpretation for the dependencies on cluster mass and size, as well as the observation that velocity of the cluster relative to its initial value decays exponentially with time with a decay constant that linearly depends on the initial velocity.

Original language	English (US)
Pages (from-to)	10135-10137
Number of pages	3
Journal	Journal of Physical Chemistry C
Volume	111
Issue number	28
DOIs	https://doi.org/10.1021/jp072290c
State	Published - Jul 19 2007

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp072290c

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title = "Quadratic friction model for cluster bombardment of molecular solids",

abstract = "Molecular dynamics simulations of energetic cluster bombardment (C 20, C 60, C 120, C 180) are performed in the range of 5-20 keV on a solid benzene substrate. The goal is to study the trends exhibited by these bombardment events and to develop a simple analytical model that explains the general dynamics associated with cluster projectiles. These results indicate that the dynamics of these clusters can be described by a macroscale quadratic friction model and thus can provide an interpretation for the dependencies on cluster mass and size, as well as the observation that velocity of the cluster relative to its initial value decays exponentially with time with a decay constant that linearly depends on the initial velocity.",

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T1 - Quadratic friction model for cluster bombardment of molecular solids

AU - Garrison, Barbara J.

AU - Ryan, Kathleen E.

AU - Russo, Michael F.

AU - Smiley, Edward J.

AU - Postawa, Zbigniew

PY - 2007/7/19

Y1 - 2007/7/19

N2 - Molecular dynamics simulations of energetic cluster bombardment (C 20, C 60, C 120, C 180) are performed in the range of 5-20 keV on a solid benzene substrate. The goal is to study the trends exhibited by these bombardment events and to develop a simple analytical model that explains the general dynamics associated with cluster projectiles. These results indicate that the dynamics of these clusters can be described by a macroscale quadratic friction model and thus can provide an interpretation for the dependencies on cluster mass and size, as well as the observation that velocity of the cluster relative to its initial value decays exponentially with time with a decay constant that linearly depends on the initial velocity.

AB - Molecular dynamics simulations of energetic cluster bombardment (C 20, C 60, C 120, C 180) are performed in the range of 5-20 keV on a solid benzene substrate. The goal is to study the trends exhibited by these bombardment events and to develop a simple analytical model that explains the general dynamics associated with cluster projectiles. These results indicate that the dynamics of these clusters can be described by a macroscale quadratic friction model and thus can provide an interpretation for the dependencies on cluster mass and size, as well as the observation that velocity of the cluster relative to its initial value decays exponentially with time with a decay constant that linearly depends on the initial velocity.

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EP - 10137

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 28

ER -

Quadratic friction model for cluster bombardment of molecular solids

Abstract

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