Investigation of nanophase separation in IR optical glasses As₄₀Se₆₀ using resonant Raman scattering

Домашня сторінка
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Фізико-технічні та математичні науки
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Відділення фізики і астрономії
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Semiconductor Physics Quantum Electronics & Optoelectronics
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Semiconductor Physics Quantum Electronics & Optoelectronics, 2004, том 7
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Semicond. Physics Quantum Electronics & Optoelectronics, 2004, № 2
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Investigation of nanophase separation in IR optical glasses As₄₀Se₆₀ using resonant Raman scattering

Mateleshko, N. ; Mitsa, V. ; Veres, M. ; Koos, M. ; Stronski, A.

Інший ID: PACS: 61.43.-j, 78.30.-j

URI: http://dspace.nbuv.gov.ua/handle/123456789/118169

Посилання: Investigation of nanophase separation in IR optical glasses As₄₀Se₆₀ using resonant Raman scattering / N. Mateleshko, V. Mitsa, M. Veres, M. Koos, A. Stronski // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2004. — Т. 7, № 2. — С. 171-174. — Бібліогр.: 19 назв. — англ.

Підтримка: Authors wish to acknowledge Prof. F. Billes and P-G. S. R. Holomb for calculations and discussions. This work was supported by the Grant No. М/467- 2003 and Grant No. 29/48-2001 (Мinistry of education and science of Ukraine and Hungarian Science and Technology Foundation).

Дата: 2004

Завантажень: 314

Investigation of nanophase separation in IR optical glasses As₄₀Se₆₀ using resonant Raman scattering

Анотація:

Resonant 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 a shape, intensity, and position of Raman peaks of g-As₄₀Se₆₀. The structure and vibration spectra of some As-Se clusters were calculated applying the ab initio method. In order to elucidate structural features of g-As₄₀Se₆₀, we combined the experimental Raman data and theoretical calculations.

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