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EnglishBrillouin and Raman scattering measurements on (AgI)x(AgPO3)1-x glasses are compared with low-temperature specific heat measurements. The direct comparison of the Brillouin shift and the freauency of the boson peak maximum shows that these features have the same qualitative behaviours. In fact, a shift towards Iow freauency is observed with increasing Agi content from x = 0 to x = 0.55, indicating a close relationship between Brillouin scattering (acoustic modes) and the boson peak. Correspondingly we have observed a shift to a lower temperature of the maximum Cp/T3
| Titolo: | Low-temperature optical and thermal properties of AgI-based phosphate glasses |
| Autori: | |
| Data di pubblicazione: | 1999 |
| Rivista: | |
| Abstract: | Brillouin and Raman scattering measurements on (AgI)x(AgPO3)1-x glasses are compared with low-temperature specific heat measurements. The direct comparison of the Brillouin shift and the freauency of the boson peak maximum shows that these features have the same qualitative behaviours. In fact, a shift towards Iow freauency is observed with increasing Agi content from x = 0 to x = 0.55, indicating a close relationship between Brillouin scattering (acoustic modes) and the boson peak. Correspondingly we have observed a shift to a lower temperature of the maximum Cp/T3 |
| Handle: | http://hdl.handle.net/11570/1586717 |
| Appare nelle tipologie: | 14.a.1 Articolo su rivista |
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