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Contribution of inter- and intraband transitions into electron-phonon coupling in metals

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    0545327 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
    Medvedev, Nikita - Milov, I.
    Contribution of inter- and intraband transitions into electron-phonon coupling in metals.
    European Physical Journal D. Roč. 75, č. 7 (2021), č. článku 212. ISSN 1434-6060. E-ISSN 1434-6079
    Grant CEP: GA MŠk LTT17015
    GRANT EU: European Commission(XE) 654148 - LASERLAB-EUROPE
    Výzkumná infrastruktura: e-INFRA CZ - 90140
    Institucionální podpora: RVO:68378271
    Klíčová slova: electron-photon coupling in metals * inter- and intraband transitions * calculations
    Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
    Impakt faktor: 1.425, rok: 2020
    Způsob publikování: Open access

    We recently developed an approach for calculation of the electron–phonon (electron–ion in a more general case) coupling in materials based on tight-binding molecular dynamics simulations. In the present work, we utilize this approach to study partial contributions of inter- and intraband electron scattering events into total electron–phonon coupling in Al, Au, and Cu elemental metals and in AlCu alloy. We demonstrate that the interband scattering plays an important role in the electron–ion energy exchange process in Al and AlCu, whereas intraband d–d transitions are dominant in Au and Cu. Moreover, interand intraband transitions exhibit qualitatively different dependencies on the electron temperature. Our findings should be taken into account for the interpretation of experimental results on the electron–phonon coupling parameter.

    Trvalý link: http://hdl.handle.net/11104/0322050

     
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