Abstract
We study the low-energy vibrational dynamics, called the boson peak (BP), of binary lithium borate glasses as a function of the composition of these glasses by inelastic neutron and Raman scattering. Firstly, we analyze the variations in the properties of the BP with the composition. The position and intensity of the BP linearly change with increasing x owing to the changes in the intermediate glass structures. Secondly, we demonstrate that all spectral shapes with different compositions can be scaled by a single master curve, and are the same for all spectra. The results suggests that there is a universal distribution of the vibrational density of states, which does not change with the composition, even though the structures of lithium borate glasses markedly change. The effect of Li 2 O doping can be understood to be a chemical structure-induced densification.
Highlights
Composition Dependence of the Boson Peak and Universality in Lithium Borate Binary Glasses: Inelastic Neutron and Raman Scattering Studies
We study the low-energy vibrational dynamics, called the boson peak (BP), of binary lithium borate glasses as a function of the composition of these glasses by inelastic neutron and Raman scattering
The results suggests that there is a universal distribution of the vibrational density of states, which does not change with the composition, even though the structures of lithium borate glasses markedly change
Summary
Composition Dependence of the Boson Peak and Universality in Lithium Borate Binary Glasses: Inelastic Neutron and Raman Scattering Studies. We study the low-energy vibrational dynamics, called the boson peak (BP), of binary lithium borate glasses as a function of the composition of these glasses by inelastic neutron and Raman scattering. We study the BP in binary LiB glasses as a function of x using a combination of inelastic neutron and Raman scattering, and show that the marked variation of the BP induced by changing x can be explained on the basis of a recent finding.12) Another important topic in study of the BP is to investigate the pressure or temperature dependence of the BP. 1(a), the compositional variations of Raman spectra show a similar trend to those of the INS spectra, indicating the consistency of the present experimental results between the
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
