First-principles investigations of the electronic, optical and chemical bonding properties of SnO2

1998 ◽  
Vol 10 (1-4) ◽  
pp. 368-372 ◽  
Author(s):  
Ph. Barbarat ◽  
S.F. Matar
1997 ◽  
Vol 7 (12) ◽  
pp. 2547-2550 ◽  
Author(s):  
Ph. Barbarat ◽  
S. F. Matar ◽  
G. Le Blevennec

2011 ◽  
Vol 197-198 ◽  
pp. 567-570
Author(s):  
Qi Jun Liu ◽  
Zheng Tang Liu ◽  
Li Ping Feng ◽  
Hao Tian

We have performed ab-initio total energy calculations using the plane-wave ultrasoft pseudopotential technique based on the first-principles density-functional theory (DFT) to study structural parameters, electronic structure, chemical bonding and optical properties of orthorhombic Li2BeSiO4. The calculated lattice parameters are in agreement with experimental data. The band structure shows a direct band gap. From the DOS analysis, charge densities and population analysis, electronic and chemical bonding properties have been studied. Furthermore, in order to understand the mechanism of optical transitions of orthorhombic Li2BeSiO4, the complex dielectric functions are calculated and analysed.


RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43191-43204 ◽  
Author(s):  
Y. F. Li ◽  
B. Xiao ◽  
L. Sun ◽  
Y. M. Gao ◽  
Y. H. Cheng

The creation of stacking fault in Al4SiC4 crystal structure due to a phonon mode (E1, 139.7 cm−1, Raman active) at Γ-point with negative mode-Grüneisen constant (−0.28). (a) 3-D side-view; (b) 2-D side view.


2010 ◽  
Vol 377 (1-3) ◽  
pp. 109-114 ◽  
Author(s):  
S.F. Matar ◽  
M. Nakhl ◽  
A.F. Al Alam ◽  
N. Ouaini ◽  
B. Chevalier

2020 ◽  
Vol 56 (6) ◽  
pp. 944-947 ◽  
Author(s):  
Nikolaos Tsoureas ◽  
Akseli Mansikkamäki ◽  
Richard A. Layfield

The synthesis, molecular structures and bonding properties of two uranium(iv) cyclobutadienyl half-sandwich complexes and a doubly activated cyclobutadienyl sandwich complex are described.


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