Impact of keV-energy argon clusters on diamond and graphite

Vladimir Popok, Juha Samela, Kai Nordlund, Vladimir P. Popov

    Research output: Contribution to journalJournal articleResearchpeer-review

    6 Citations (Scopus)
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    Abstract

    Impact of keV-energy size-selected Arn (n = 16, 27, 41) cluster ions on diamond and graphite is studied both experimentally and by molecular dynamics simulations. For the case of diamond, relatively high cluster kinetic energies (above certain threshold) are required to produce severe radiation damage and originate crater formation on the surface. This is related to very strong chemical bonds and both the melting (or sublimation) point and thermal conductivity of diamond being the highest among the solids. For the case of graphite, which is layered material with weak van der Waals bonds between the graphene planes, significant radiation damage is already introduced by impact of clusters with low kinetic energies (a few tens of eV/atom). However, collisions of the argon clusters cause very elastic response of the graphene planes that leads to efficient closure of the craters which could be formed at the initial stage of impact.
    Original languageEnglish
    JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
    Volume282
    Pages (from-to)112-115
    ISSN0168-583X
    DOIs
    Publication statusPublished - 1 Jul 2012

    Fingerprint

    Argon
    Diamonds
    Graphite
    graphite
    diamonds
    Radiation damage
    argon
    Kinetic energy
    Graphene
    radiation damage
    craters
    graphene
    kinetic energy
    Chemical bonds
    Sublimation
    Molecular dynamics
    energy
    Thermal conductivity
    Melting
    chemical bonds

    Keywords

    • cluster ion implantation, craters, hillocks, scanning probe microscopy, molecular dynamics simulations

    Cite this

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    title = "Impact of keV-energy argon clusters on diamond and graphite",
    abstract = "Impact of keV-energy size-selected Arn (n = 16, 27, 41) cluster ions on diamond and graphite is studied both experimentally and by molecular dynamics simulations. For the case of diamond, relatively high cluster kinetic energies (above certain threshold) are required to produce severe radiation damage and originate crater formation on the surface. This is related to very strong chemical bonds and both the melting (or sublimation) point and thermal conductivity of diamond being the highest among the solids. For the case of graphite, which is layered material with weak van der Waals bonds between the graphene planes, significant radiation damage is already introduced by impact of clusters with low kinetic energies (a few tens of eV/atom). However, collisions of the argon clusters cause very elastic response of the graphene planes that leads to efficient closure of the craters which could be formed at the initial stage of impact.",
    keywords = "cluster ion implantation, craters, hillocks, scanning probe microscopy, molecular dynamics simulations",
    author = "Vladimir Popok and Juha Samela and Kai Nordlund and Popov, {Vladimir P.}",
    year = "2012",
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    doi = "10.1016/j.nimb.2011.08.055",
    language = "English",
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    pages = "112--115",
    journal = "Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms",
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    Impact of keV-energy argon clusters on diamond and graphite. / Popok, Vladimir; Samela, Juha; Nordlund, Kai; Popov, Vladimir P.

    In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 282, 01.07.2012, p. 112-115.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Impact of keV-energy argon clusters on diamond and graphite

    AU - Popok, Vladimir

    AU - Samela, Juha

    AU - Nordlund, Kai

    AU - Popov, Vladimir P.

    PY - 2012/7/1

    Y1 - 2012/7/1

    N2 - Impact of keV-energy size-selected Arn (n = 16, 27, 41) cluster ions on diamond and graphite is studied both experimentally and by molecular dynamics simulations. For the case of diamond, relatively high cluster kinetic energies (above certain threshold) are required to produce severe radiation damage and originate crater formation on the surface. This is related to very strong chemical bonds and both the melting (or sublimation) point and thermal conductivity of diamond being the highest among the solids. For the case of graphite, which is layered material with weak van der Waals bonds between the graphene planes, significant radiation damage is already introduced by impact of clusters with low kinetic energies (a few tens of eV/atom). However, collisions of the argon clusters cause very elastic response of the graphene planes that leads to efficient closure of the craters which could be formed at the initial stage of impact.

    AB - Impact of keV-energy size-selected Arn (n = 16, 27, 41) cluster ions on diamond and graphite is studied both experimentally and by molecular dynamics simulations. For the case of diamond, relatively high cluster kinetic energies (above certain threshold) are required to produce severe radiation damage and originate crater formation on the surface. This is related to very strong chemical bonds and both the melting (or sublimation) point and thermal conductivity of diamond being the highest among the solids. For the case of graphite, which is layered material with weak van der Waals bonds between the graphene planes, significant radiation damage is already introduced by impact of clusters with low kinetic energies (a few tens of eV/atom). However, collisions of the argon clusters cause very elastic response of the graphene planes that leads to efficient closure of the craters which could be formed at the initial stage of impact.

    KW - cluster ion implantation, craters, hillocks, scanning probe microscopy, molecular dynamics simulations

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    U2 - 10.1016/j.nimb.2011.08.055

    DO - 10.1016/j.nimb.2011.08.055

    M3 - Journal article

    VL - 282

    SP - 112

    EP - 115

    JO - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

    JF - Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

    SN - 0168-583X

    ER -