ON THE USE OF DIAMOND AS A PRESSURE CALIBRANT FOR NEAR-INFRARED FT-RAMAN MICROSPECTROSCOPY AT HIGH-PRESSURES

Authors
MARKWELL RD BUTLER IS
Citation
Rd. Markwell et Is. Butler, ON THE USE OF DIAMOND AS A PRESSURE CALIBRANT FOR NEAR-INFRARED FT-RAMAN MICROSPECTROSCOPY AT HIGH-PRESSURES, Canadian journal of chemistry, 73(7), 1995, pp. 1019-1022
Citations number
14
Categorie Soggetti
Chemistry
Journal title
Canadian journal of chemistry → ACNP
ISSN journal
00084042
Volume
73
Issue
7
Year of publication
1995
Pages
1019 - 1022
Database
ISI
SICI code
0008-4042(1995)73:7<1019:OTUODA>2.0.ZU;2-M
Abstract
The pressure-induced shift of the Raman-active t(2g) phonon mode of th e diamond windows in a commercial diamond-anvil cell, located at 1332. 5 cm(-1) at ambient pressure, can be used as an in situ calibrant for near-IR FT-Raman microspectroscopy at high pressures. The measured pre ssures are considered to be accurate to within +/-2 kbar throughout th e 4-45 kbar range for which the associated pressure (P, kbar) vs. wave number (nu, cm(-1)) relationship is P = 6.66 nu - 1335.9.