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Title: Boson peak in neutron-irradiated quartz crystal
Authors: Parchine, Mikhail
Laermans, Christiane
Parshin, DA
Melehin, VG #
Issue Date: 2002
Publisher: Elsevier science bv
Series Title: Physica B vol:316-317 pages:549-551
Abstract: In this paper we present Raman measurements in the low-frequency range from 15 to 150 cm(-1), which were performed in quartz crystal irradiated with fast neutron (irradiation dose 4.7 x 10(19) n/cm(2)). This dose leaves the sample mainly crystalline (70%). Our measurements revealed the presence of the boson peak at 60 cm(-1). The soft-potential model explains the boson peak in amorphous solids by the inelastic scattering of light by soft quasilocal harmonic oscillators (HO). Our observation shows that the irradiation dose 4.7 x 10(19) n/cm(2) is sufficient to create a concentration of quasilocal HO, which is necessary for the appearance of the boson peak. (C) 2002 Elsevier Science B.V. All rights reserved.
URI: 
ISSN: 0921-4526
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Semiconductor Physics Section
# (joint) last author

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