Spectroscopy and Stimulated Emission of Nd3+- Doped Tetragonal NaBi (MoO4)2 and NaBi (WO4)2 Disordered Crystals
β Scribed by Kaminskii, A. A. ;Kholov, A. ;Klevtsov, P. V. ;Kh. Khafizov, S.
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 397 KB
- Volume
- 114
- Category
- Article
- ISSN
- 0031-8965
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The structure of tetragonal NaBi(WO,), crystal is determined. The space group is Z8 = Sj with cell dimensions a = 5.275, c = 11.493 w and two molecules per unit cell. The tungsten atoms occupy two different sites of 4 symmetry. Also Bi and Na atoms statistically occupy two positions with different o
Electronic band structure, total and partial density of states and optical properties of NaBi(WO 4 ) 2 (NBW) crystal have been calculated using the first principles full potential linearized augmented plane wave (FP-LAPW) method. The electronic structure thus obtained shows a strong hybridization of