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101 0 _aeng
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181 0 _ai
182 0 _ab
200 1 _aQuantum-size effects in the loss function of Pb(111) thin films: An ab initio study
_fX. Zubizarreta [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 118 tit.]
330 _aA theoretical study of collective electronic excitations in free-standing Pb(111) thin films consisting of 1–5 monolayers (MLs) and a 21-ML film is presented. The calculations are carried out applying the linear response theory, with full inclusion of the electron band structure by means of a first-principles pseudopotential approach in a supercell scheme. In the case of the thickest film, we find that, due to strong bulklike interband transitions, at the Pb(111) surface there are two surface modes. For thin films, a mechanism of transformation of these modes to the symmetric and antisymmetric classic hybrid plasmons is investigated. Pronounced quantum-size effects on plasmon modes of the thinnest films are found. Strong influence of the band structure on dispersion and lifetime of such modes is demonstrated. The present results are in good agreement with available experimental data for a Pb surface and thin films.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPhysical Review B
_oCondensed Matter and Materials Physics
_oScientific Journal
_d1970-
463 _tVol. 95, iss. 23
_v[235405, 15 p.]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aквантово-размерные эффекты
610 1 _aфункции потерь
610 1 _aтонкие пленки
610 1 _aнеэмпирические методы
701 1 _aZubizarreta
_bX.
_gXabier
701 1 _aChulkov
_bE. V.
_gEvgeny Vladimirovich
701 1 _aChernov
_bI. P.
_cDoctor of Physical and Mathematical Sciences (DSc), Professor of the Department of General Physics of Tomsk Polytechnic University (TPU)
_f1935-
_gIvan Petrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\30202
701 1 _aVasenko
_bA. S.
_gAndrey Sergeevich
701 1 _aAldazabal
_bI.
_gInigo
701 1 _aSilkin
_bV. M.
_gVyacheslav Mikhaylovich
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра общей физики (ОФ)
_h136
_2stltpush
_3(RuTPU)RU\TPU\col\18734
801 2 _aRU
_b63413507
_c20170908
_gRCR
856 4 _uhttps://doi.org/10.1103/PhysRevB.95.235405
942 _cCF