Journal Article

PUBDB-2022-00498

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The boson peak and the first sharp diffraction peak in (As$_2$S$_3$)$_x$(GeS$_2$)$_{1–x}$ glasses

Stronski, A. V. ; Kavetskyy, T. S.Extern* ; Revutska, L. O. ; Kaban, I.Extern* ; Jóvári, P.Extern* ; Shportko, K. V. (Corresponding author) ; Sergienko, V. P. ; Popovych, M. V.

2021
Inst. of Semiconductor Physics Kyiv

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Please use a persistent id in citations: doi:10.15407/spqeo24.03.312  doi:10.3204/PUBDB-2022-00498

Abstract: The parameters of the boson peak (BP) and the first sharp diffraction peak (FSDP) in (As$_2$S$_3$)$_x$(GeS$_2$)$_{1–x}$ glasses measured using high-resolution Raman spectroscopy and high-energy synchrotron X-ray diffraction measurements are examined as a function of x. It has been found that there is no correlation between the positions of BP and FSDP. The BP position shows a nonlinear composition behavior with a maximum at about x = 0.4, whereas the FSDP position changes virtually linearly with x. The intensities of both BP and FSDP show nonlinear composition dependences with the slope changes at x = 0.4, although there is no direct proportionality. Analysis of the partial structure factors for the glasses with x = 0.2, 0.4 and 0.6 obtained in another study has shown that the cation-cation atomic pairs of Ge–Ge, Ge–As and As–As make the largest contribution to FSDP, where the Ge–Ge and Ge–As pairs are dominant.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)

Experiment(s):

1. DORIS Beamline BW5 (DORIS III)
2. DORIS Beamline X1 (DORIS III)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; DOAJ Seal ; Ebsco Academic Search ; Emerging Sources Citation Index ; SCOPUS ; Web of Science Core Collection

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