Can corundum be described as an ionic oxide?

1993 ◽  
Vol 99 (9) ◽  
pp. 6818-6823 ◽  
Author(s):  
Carmen Sousa ◽  
Francesc Illas ◽  
Gianfranco Pacchioni
Keyword(s):  
Ionic Oxide

Interionic vibrations and glass transitions in ionic oxide metaphosphate glasses

1974 ◽  
Vol 60 (11) ◽  
pp. 4145-4155 ◽  
Author(s):  
Gregory J. Exarhos ◽  
Philip J. Miller ◽  
William M. Risen
Keyword(s):  
Glass Transitions ◽  
Ionic Oxide

First Evidence of a Single-Ion Electron Trap at the Surface of an Ionic Oxide

2003 ◽  
Vol 42 (15) ◽  
pp. 1759-1761 ◽  
Author(s):  
Mario Chiesa ◽  
Maria Cristina Paganini ◽  
Elio Giamello ◽  
Cristiana Di Valentin ◽  
Gianfranco Pacchioni
Keyword(s):  
Electron Trap ◽  
Ionic Oxide

O2 atmospheric annealing-tunable defects in ionic oxide MgO nanoribbons

2019 ◽  
Vol 114 (20) ◽  
pp. 203101 ◽  
Author(s):  
Jian-Min Li ◽  
Yun-Bing Hu
Keyword(s):  
Ionic Oxide

Surface area and the mechanism of hydroxylation of ionic oxide surfaces

1984 ◽  
Vol 80 (10) ◽  
pp. 2609 ◽  
Author(s):  
Colin F. Jones ◽  
Robyn A. Reeve ◽  
Rupert Rigg ◽  
Robert L. Segall ◽  
Roger St. C. Smart ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxide Surfaces ◽  
Ionic Oxide

ChemInform Abstract: Can Corundum be Described as an Ionic Oxide?

ChemInform ◽  
2010 ◽  
Vol 25 (8) ◽  
pp. no-no
Author(s):  
C. SOUSA ◽  
F. ILLAS ◽  
G. PACCHIONI
Keyword(s):  
Ionic Oxide

scholarly journals Segregation-induced grain boundary electrical potential in ionic oxide materials: A first principles model

2010 ◽  
Vol 58 (19) ◽  
pp. 6404-6410 ◽  
Author(s):  
D. Gómez-García ◽  
Juan J. Meléndez ◽  
Robert L. González-Romero ◽  
A. Domínguez-Rodríguez
Keyword(s):  
Grain Boundary ◽  
First Principles ◽  
Electrical Potential ◽  
Oxide Materials ◽  
Ionic Oxide

Excess Electrons Stabilized on Ionic Oxide Surfaces†

2006 ◽  
Vol 39 (11) ◽  
pp. 861-867 ◽  
Author(s):  
Mario Chiesa ◽  
Maria Cristina Paganini ◽  
Elio Giamello ◽  
Damien M. Murphy ◽  
Cristiana Di Valentin ◽  
...  
Keyword(s):  
Oxide Surfaces ◽  
Excess Electrons ◽  
Ionic Oxide

LOCAL LATTICE STRUCTURE AND DOPANT OCCUPANCY OF DOPED LITHIUM NIOBATE CRYSTALS

2009 ◽  
Vol 23 (31n32) ◽  
pp. 3687-3694 ◽  
Author(s):  
ZHIGANG ZHANG ◽  
DONGFENG XUE
Keyword(s):  
Lithium Niobate ◽  
Bond Length ◽  
Lattice Structure ◽  
Lattice Energy ◽  
Radial Force ◽  
Impurity Ions ◽  
Local Lattice ◽  
Property Modification ◽  
Ionic Oxide ◽  
Local Distortions

We present a systematic study of the local distortions produced upon doping metal ions to lithium niobate ( LiNbO 3, LN) single crystals. The impurity bond length can be predicted by a radial force constant model, when the dopant ions substitute for Li + or Nb 5+ ions in the LN crystallographic frame. From the viewpoint of constituent chemical bonds, the lattice energy can be described as the function of bond valence on the basis of Born–Haber cycle for the formation of an ionic oxide M m O n . The dopant occupancy in the LN matrix can be determined by comparing the deviation of its lattice energy in different locations at both Li + and Nb 5+ sites, on the basis of the bond length relaxation of impurity ions, which can agree well with the experiment results. The effect of impurity ions on the property modification of LN crystals is also discussed according to our calculated results.

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