In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 5S ( 1999-05-01), p. 3062-
Abstract:
Brillouin and Raman scattering measurements have been applied
for the investigation of GeO 2 glasses densified under high pressures up to 9 GPa at 673 K. The density of obtained glasses increases with an
increase of applied pressure. It increases significantly around 3 GPa, however, shows a peak at 6 GPa. A significant increase is also observed in
hypersonic wave velocity, and longitudinal and shear moduli around 3 GPa. These results are well explained by amorphous-amorphous transition. In Raman scattering measurement, vibrational modes illustrate
continuous changes of local structures with increasing applied pressures up to 9 GPa. Boson peaks show a maximum around 3 GPa, which
indicates the minimum correlation length. These data suggest a change in the intermediate-range structure.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.3062
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
