Open AccessPhase transitions of CdS microcrystals under high pressure
Author(s) -
Nanba T.,
Muneyasu M.,
Hiraoka N.,
Kaga S.,
Williams G. P.,
Shimomura O.,
Adachi T.
Publication year - 1998
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049597016002
Subject(s) - synchrotron radiation , phase transition , diamond anvil cell , high pressure , synchrotron , lattice (music) , materials science , crystallography , phase (matter) , chemical physics , chemistry , thermodynamics , optics , physics , organic chemistry , acoustics
The experiment under high pressure using a diamond anvil cell (DAC) requires the utilization of synchrotron radiation. High‐pressure experiments were performed using a DAC on CdS microcrystals, both in the far‐IR and in the X‐ray regions, in order to study the lattice dynamics and lattice stability concerned with the phase transitions. From these experiments, experimental evidence is presented indicating that a CdS microcrystal of smaller diameter shows a higher transition pressure for lattice transformation under pressure. The origin of such an increase in the transition pressure in the microcrystals is discussed in relation to the surface tension.