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Ab-initio modeling of Al2O3 lattice instability under extreme excitation of the electronic system

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00507460" target="_blank" >RIV/61389021:_____/18:00507460 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378271:_____/18:00578980

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/abs/pii/S0168583X18302313?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0168583X18302313?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.nimb.2018.03.038" target="_blank" >10.1016/j.nimb.2018.03.038</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Ab-initio modeling of Al2O3 lattice instability under extreme excitation of the electronic system

  • Original language description

    Nonthermal phase transformations induced in Al2O3 by the electronic temperatures above similar to 2.5 eV is demonstrated with ab initio molecular dynamics simulations. When this temperature exceeds similar to 4 eV, such a transformation occurs within similar to 500 fs i.e. within the typical time-scale of relaxation of the excited electronic system in a micron-size spot of a femtosecond-laser pulse. The electronic temperature at least above 6-10 eV is required for a nonthermal melting to occur in Al2O3 within similar to 50-100 fs, which is the time scale of cooling down of the electronic system in a swift heavy ion track. Because such level of the electronic temperature cannot be kept during all this time, we conclude that nonthermal melting of alumina in SHI tracks is implausible.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10304 - Nuclear physics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Nuclear Instruments & Methods in Physics Research Section B

  • ISSN

    0168-583X

  • e-ISSN

  • Volume of the periodical

    435

  • Issue of the periodical within the volume

    November

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    87-92

  • UT code for WoS article

    000452585500017

  • EID of the result in the Scopus database

    2-s2.0-85045306644