| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|
|---|---|---|
| Page(s) | C6-581 - C6-583 | |
| DOI | https://doi.org/10.1051/jphyscol:19816169 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-581-C6-583
DOI: 10.1051/jphyscol:19816169
1 Instituto de Física Gleb Wataghin, UNICAMP, 13100 Campinas, SP., Brasil
2 Depto. de Fisica, UFPa
3 CNPq Research Fellow
J. Phys. Colloques 42 (1981) C6-581-C6-583
DOI: 10.1051/jphyscol:19816169
MULTIPHONON PROCESS IN NiSO4, 6H2O
L.S.G. Cancela1, 2, J.G. Ramos1 et G.M. Gualberto1, 31 Instituto de Física Gleb Wataghin, UNICAMP, 13100 Campinas, SP., Brasil
2 Depto. de Fisica, UFPa
3 CNPq Research Fellow
Abstract
We have measured the Raman spectrum of B2 phonons in NiSO4. 6H2O as a function of temperature in the range 80K to 300K. One of these line (42cm-1 at T=300K) has a temperature dependence of its intensity characteristic of difference combination of two others phonons. Another line of the same symmetry, which would be the sum combination of those two phonons, has a temperature dependence of its intensity characteristic of an one phonon line.