A. Moreno, P. Freire, F. Melo
Sep 1, 1997
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0
Influential Citations
56
Citations
Journal
Solid State Communications
Abstract
Abstract Single-crystal samples of monohydrated l-asparagine, C4N2O3H8. H2O, a fundamental aminoacid of the human body and other complex beings, have been studied by Raman spectroscopy in a diamond-anvil cell up to pressures of 2.0 GPa. From the analysis of results we observed that the crystal undergoes a series of three phase transitions. All transitions are accompanied by drastic changes in the external modes and in some internal modes of the crystal, which shows in a clear way the transitions induced by the hydrostatic pressure. Pressure coefficients for external modes are also given.