MICRO-RAMAN STUDY OF NAXPT3O4 CRYSTALS

Authors
WEBER WH GRAHAM GW CHEN AE HASS KC CHAMBERLAND BL
Citation
Wh. Weber et al., MICRO-RAMAN STUDY OF NAXPT3O4 CRYSTALS, Solid state communications, 106(2), 1998, pp. 95-100
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
106
Issue
2
Year of publication
1998
Pages
95 - 100
Database
ISI
SICI code
0038-1098(1998)106:2<95:MSONC>2.0.ZU;2-5
Abstract
Raman spectra are obtained from two types of NaxPt3O4 crystals (x appr oximate to 1 and x approximate to 0.4) grown by reacting Pt with O und er high temperature and high O-2 pressure conditions. The crystals sho w a growth habit having rectangular facets aligned with the cubic unit cell. Polarized spectra from such facets obtained with a Raman micros cope yield assignments for all four Raman-allowed modes: two O modes o f species F-2g and E-g near 700 cm(-1) and two Pt modes of the same sp ecies near 200 cm(-1). The O modes shift substantially with changes in the Na concentration, whereas the Pt modes do not. (C) 1998 Published by Elsevier Science Ltd.