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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gerald, J. D. Fitz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (3/3 displayed)
- 2006A structure and phase analysis investigation of the "1:1" ordered A2InNbO6 perovskites (A=Ca2+, Sr2+, Ba2+)citations
- 2001Effect of implant temperature on secondary defects created by MeV Sn implantation in siliconcitations
- 2000Transmission electron microscopy characterization of secondary defects created by MeV Si, Ge, and Sn implantation in siliconcitations
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article
A structure and phase analysis investigation of the "1:1" ordered A2InNbO6 perovskites (A=Ca2+, Sr2+, Ba2+)
Abstract
<p>The structures of the Ba<sub>2</sub>InNbO<sub>6</sub>, Sr <sub>2</sub>InNbO<sub>6</sub> and Ca<sub>2</sub>InNbO<sub>6</sub> "1:1" complex perovskites have been refined from neutron powder diffraction data. Both the A=Ca and Sr compounds occur at room temperature in P12<sub>1</sub>/n1 (a=a<sub>p</sub>+b<sub>p</sub>, b=-a<sub>p</sub>+b <sub>p</sub>, c=2c<sub>p</sub>) perovskite-related superstructures while the A=Ba compound occurs in the Fm3̄m, a=2a<sub>p</sub>, elpasolite structure type. In the case of the A=Ca compound, an extensive Ca<sub>2</sub>[(Ca <sub>2x/3</sub>In<sub>1-x</sub>Nb <sub>x/3</sub>)Nb]O<sub>6</sub> 'solid solution' field spanning compositions between Ca<sub>4</sub>Nb<sub>2</sub>O<sub>9</sub> and Ca <sub>2</sub>InNbO<sub>6</sub> in the CaO-InO<sub>3/2</sub>-NbO<sub>5/2</sub> ternary phase diagram is shown to exist. Under the conditions of synthesis used, the 'solid solution' field stops just short of the ideal 1:1 Ca <sub>2</sub>InNbO<sub>6</sub> composition.</p>