Title
A synchrotron radiation, HRTEM, X-ray powder diffraction, and Raman spectroscopic study of malayaite, <tex>$CaSnSiO_{5}$</tex> A synchrotron radiation, HRTEM, X-ray powder diffraction, and Raman spectroscopic study of malayaite, <tex>$CaSnSiO_{5}$</tex>
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Washington, D.C. ,
Subject
Physics
Chemistry
Biology
Source (journal)
The American mineralogist / Mineralogical Society of America. - Washington, D.C.
Volume/pages
81(1996) :5/6 , p. 595-602
ISSN
0003-004X
ISI
A1996UP41100006
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
Synchrotron radiation, high-resolution transmission electron microscopy (HRTEM), X-ray powder diffraction, and Raman spectroscopy were used to study the structure and thermal behavior of malayaite, CaSnSiO5. No indications of deviation from A2/a symmetry and no structural transitions were observed between 100 and 870 K. HRTEM revealed that the material is free of domains and antiphase boundaries. However, the lattice constants, cell volume, and Raman-active phonons show a thermal discontinuity near 500 K, which is possibly related to variation of the coordination sphere around the highly anisotropic Ca position.
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