Raman Spectra of Bismuth Oxyhalide Single Crystals

• Authors: S. Bunda , V. Bunda
• Languages of publication: EN

Abstracts

EN

Oxyhalogenides of bismuth BiOX (X=Cl, Br and I) are very interesting materials which find various applications as X-ray luminescent screens, anti-Stokes (frequency upshift) converters, luminophors, and photoconducting analyzers of linear polarized radiation. Since each primitive cell consist of six monoatomic sites, the structure of the reduced representation of the 15 normal modes of vibration is: Γ= 2A_{1g}(Ra.)+B_{1g}(Ra.)+ 3E_{g}(Ra.)+ 2A_{2u}(i.r.)+ 2E_{u}(i.r.), in which the vibrations of A_{1g}, B_{1g} and E_{g} species are active in the Raman spectrum and those of A_{2u} and E_{u} species are active in the infrared (i.r.) spectrum. The Raman active modes are observed in frequency range 55 - 225 cm^{-1}, 50 - 185 cm^{-1 }, and 45 - 175 cm^{-1} for the BiOCl, BiOBr and BiOI single crystals respectively.

Keywords

EN

62.22.-m; 78.30.Am; 78.30.Fs

Discipline

• 78.30.Am: Elemental semiconductors and insulators
• 78.30.Fs: III-V and II-VI semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 272-273

Dates

published

2014-07

Contributors

author

S. Bunda

• Faculty of Design, Transcarpathian Institute of Arts, Voloshin 37, 880 00 Uzhgorod, Ukraine

author

V. Bunda

• Faculty of Design, Transcarpathian Institute of Arts, Voloshin 37, 880 00 Uzhgorod, Ukraine

References

• [1] V. Bunda, S. Bunda, Superconductors - properties, technology, and applications ISBN: 978-953-51-0545-9, Eds. Yu. Grigorashvili, InTech, Rijeka (Croatia) 2012, p. 323

Identifiers

DOI

10.12693/APhysPolA.126.272