Investigation of nanophase separation in glassy as40Se 60 using raman scattering and AB initio calculations

N. Mateleshko, V. Mitsa, M. Veres, M. Koós

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Raman spectra of stoichiometric glass (g) g-As40Se60 have been investigated. It was observed that the increasing of excitation radiation energy hv>E0 (E0 is pseudogap width) changes the shape and position of Raman peaks of g-As40Se60. The structure and vibration spectra of some As-Se clusters were calculated applying Hartree-Fock (HF) and density functional theory (DFT). In order to elucidate structural features of g-As40Se60, we combined the experimental Raman data and theoretical calculations.

Original languageEnglish
Pages (from-to)991-996
Number of pages6
JournalJournal of Optoelectronics and Advanced Materials
Volume7
Issue number2
Publication statusPublished - Apr 2005

Fingerprint

Density functional theory
Raman scattering
Raman spectra
density functional theory
Radiation
Glass
vibration
glass
radiation
excitation
energy

Keywords

  • Chalcogenide glasses
  • Clusters
  • Raman spectra

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Investigation of nanophase separation in glassy as40Se 60 using raman scattering and AB initio calculations. / Mateleshko, N.; Mitsa, V.; Veres, M.; Koós, M.

In: Journal of Optoelectronics and Advanced Materials, Vol. 7, No. 2, 04.2005, p. 991-996.

Research output: Contribution to journalArticle

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