000 02082nab a2200325 c 4500
001 vtls000660032
003 RU-ToGU
005 20230319215405.0
007 cr |
008 190703|2019 ne s a eng dd
024 7 _a10.1016/j.susc.2018.08.011
_2doi
035 _ato000660032
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aSurface discrete breathers in Pt3Al intermetallic alloy
_cP. V. Zakharov, E. A. Korznikova, S. V. Dmitriev [et al.]
504 _aБиблиогр.: 52 назв.
520 3 _aIt is known that defect-free crystals having a wide gap in the phonon spectrum can support gap discrete breathers (DB) being spatially localized large amplitude vibrational modes with frequencies within theband gap. One of examples of such crystal type is the intermetallic alloy Pt3Al with a a gap in the phonon spectrum caused by large difference in the atomic masses of the components. In the present work, the first attempts of the molecular dynamics modelling studiesof the DB close to atomically smooth (100) orientation surface of the crystal is presented. It is shown that properties of the DB depend essentially on the composition of the surface atomic plane, which for the considered crystal can consist of Pt atoms or both of Pt and Al atoms in equal proportions. The results obtained can significantly contribute to the development of surface physics science.
653 _aинтерметаллиды
653 _aбездефектные кристаллы
655 4 _aстатьи в журналах
_9879358
700 1 _aKorznikova, Elena A.
_9106046
700 1 _aDmitriev, Sergey V.
_9102247
700 1 _aEkomasov, Evgeny G.
_9496806
700 1 _aZhou, Kun
_9420805
700 1 _aZakharov, P. V.
_9496807
773 0 _tSurface science
_d2019
_gVol. 679. P. 1-5
_x0039-6028
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000660032
908 _aстатья
999 _c457210