Optical Properties and Electronic Structure of CaO

被引：4

作者：

Sobolev, V. V. ^{[1
]}

Merzlyakov, D. A. ^{[1
]}

Sobolev, V. Val. ^{[1
,2
]}

机构：

[1] Udmurt State Univ, 1 Univ Skaya Str, Izhevsk 426034, Russia

[2] MT Kalashnikov Izhevsk State Tech Univ, Izhevsk, Russia

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2016年 / 83卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

calcium oxide; optical function; maximum; shoulder; exciton; interband transition; plasmon; ALKALINE-EARTH OXIDES; BAND-STRUCTURE CALCULATIONS; FUNDAMENTAL ABSORPTION; IONIC-CRYSTALS; SPECTRA; MGO; CHALCOGENIDES; SULFIDES; CHARGE; BAO;

D O I：

10.1007/s10812-016-0329-7

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Spectra of 11 optical functions of CaO in the ranges 6.5-7.2 eV at 2 K and 0-60 eV at 77 K were determined. A total of 14 maxima and shoulders of excitons and interband transitions were found including two distinct exciton structures at 6.9 and 11.4 eV and volume and surface plasmon maxima at similar to 38.3 and 33.2 eV, respectively. Their principal features and general trends were established. Variable formation efficiencies of spectra of the dielectric permittivity and characteristic electron-energy losses in different spectral ranges were analyzed. The calculations used known experimental reflectance spectra and computer programs based on the Kramers-Kronig correlations and analytical formulae for the relationship between optical functions.

引用

页码：567 / 572

页数：6

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