Numerical Research of Materials Crystal Lattice Parameters Based on Rare-Earth Metals

Bibliografski detalji
Parent link:MATEC Web of Conferences
Vol. 96 : Fundamental Aspects of Rare-Earth Elements Exploration, Mining and Separation and Modern Materials Engineering (REE-2016).— 2017.— [00006, 5 p.]
Autor kompanije: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра электроники и автоматики физических установок (№ 24) (ЭАФУ)
Daljnji autori: Obkhodskiy A. V. Artem Viktorovich, Popov A. S. Aleksandr Sergeevich, Zolotarev A. A. Alexey Andreevich, Kuznetsov S. G. Sergey Gennadjevich, Sachkov V. I. Victor Ivanovich
Sažetak:Title screen
Geometrical parameters (coordinates and angles) of CeO2 crystal lattice by molecular dynamics method are calculated. Calculated parameters of crystal lattice are applied for definition the energy band structure via Hartree-Fock method in an approximation to CO LCAO (crystal orbitals as linear combination of atomic orbitals) and using the model of cyclic cluster. Calculated minimum energy band p-d is within the value range of experimental data. Valence band maximum is 4.2 while minimum energy band p-d width is 2.8 eV Quantum-chemical calculations are accelerated by Schwarz inequality and direct inversion method in iterative subspace. The obtained mathematical model is implemented into software package for calculating material properties.
Jezik:engleski
Izdano: 2017
Teme:
Online pristup:https://doi.org/10.1051/matecconf/20179600006
Format: Elektronički Poglavlje knjige
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655245

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330 |a Geometrical parameters (coordinates and angles) of CeO2 crystal lattice by molecular dynamics method are calculated. Calculated parameters of crystal lattice are applied for definition the energy band structure via Hartree-Fock method in an approximation to CO LCAO (crystal orbitals as linear combination of atomic orbitals) and using the model of cyclic cluster. Calculated minimum energy band p-d is within the value range of experimental data. Valence band maximum is 4.2 while minimum energy band p-d width is 2.8 eV Quantum-chemical calculations are accelerated by Schwarz inequality and direct inversion method in iterative subspace. The obtained mathematical model is implemented into software package for calculating material properties. 
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463 1 |t Vol. 96 : Fundamental Aspects of Rare-Earth Elements Exploration, Mining and Separation and Modern Materials Engineering (REE-2016)  |o 3rd International Symposium on Fundamental Aspects, 15-18 August, 2016, Kazakhstan  |v [00006, 5 p.]  |d 2017 
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701 1 |a Obkhodskiy  |b A. V.  |c specialist in the field of nuclear power engineering  |c Associate Professor of Tomsk Polytechnic University, Candidate of technical science  |f 1982-  |g Artem Viktorovich  |3 (RuTPU)RU\TPU\pers\32672 
701 1 |a Popov  |b A. S.  |c physicist  |c Design Engineer of Tomsk Polytechnic University  |f 1992-  |g Aleksandr Sergeevich  |3 (RuTPU)RU\TPU\pers\38306 
701 1 |a Zolotarev  |b A. A.  |g Alexey Andreevich 
701 1 |a Kuznetsov  |b S. G.  |g Sergey Gennadjevich 
701 1 |a Sachkov  |b V. I.  |g Victor Ivanovich 
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