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Electronic Structure of High-pressure Alumina Polymorphs |
LIU Xiao-Lei;DUAN Wen-Hui;GU Bing-Lin |
Department of Physics, Tsinghua University, Beijing 100084 |
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Cite this article: |
LIU Xiao-Lei, DUAN Wen-Hui, GU Bing-Lin 2000 Chin. Phys. Lett. 17 441-443 |
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Abstract Electronic properties are investigated for three alumina polymorphs (corundum, Rh2O3 (II) and Pbnm perovskite), which are predicted as the stable structures under different pressure range, by means of the first-principles molecular dynamics method within local density functional framework. The similarity in electronic properties of the polymorphs of alumina is observed. The effect of possible phase transitions on ruby (Cr+3-doped Al2O3) fluorescences is discussed.
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Keywords:
71.15.Pd
81.40. Vw
62.50.+p
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Published: 01 June 2000
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