TITLE

Anomalies in the Variation of Elastic Properties of Cesium during Phase Transformations under a Pressure up to 5 GPa

AUTHOR(S)
Voronov, F. F.; Stal’gorova, O. V.; Gromnitskaya, E. L.
PUB. DATE
July 2002
SOURCE
Journal of Experimental & Theoretical Physics;Jul2002, Vol. 95 Issue 1, p77
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The pulsed ultrasonic method is used for studying polycrystalline cesium under a pressure up to 5 GPa. Elastic parameters and compression ratio of cesium are determined and anomalies in the elastic properties of cesium during phase transitions CsI-CsII-CsIII-CsIV are revealed. It is found that the CsII-CsIII electron-structure transformation is preceded by anomalous compressibility of the fcc phase of cesium and by softening of longitudinal and transverse acoustic modes of the cesium phonon spectrum.
ACCESSION #
7289976

 

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