Optical-absorption edge of CsI up to 58 GPa
- 15 August 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 30 (4) , 2309-2311
- https://doi.org/10.1103/physrevb.30.2309
Abstract
The optical transmittancy of cesium iodide single crystals has been studied up to 58 GPa, using xenon as a pressure-transmitting medium. The shape and position of the absorption edge under pressure has been measured under controlled stress-homogeneity conditions. It is found to differ significantly from previous results obtained on highly strained powder samples. The data are analyzed in terms of band-toband transitions and show that band closing in cesium iodide is not to be expected below 90 GPa.Keywords
This publication has 13 references indexed in Scilit:
- Pressure-induced successive phase transitions in CsI and its equation of state in relation to metallizationPhysical Review B, 1984
- Equation of state and high-pressure phase transition of CsIPhysical Review B, 1984
- Structural and Bonding Changes in Cesium Iodide at High PressuresScience, 1984
- First-principles calculation of the insulator-to-metal transition pressure in CsISolid State Communications, 1983
- Optical observations on xenon up to 63 GPaPhysical Review B, 1982
- Effect of very high pressure on the optical absorption spectra in CsISolid State Communications, 1981
- Specific volume measurements of Cu, Mo, Pd, and Ag and calibration of the ruby R1 fluorescence pressure gauge from 0.06 to 1 MbarJournal of Applied Physics, 1978
- Optical Absorption Spectra of the Alkali Halides at 10°KPhysical Review B, 1967
- Intensity of Optical Absorption by ExcitonsPhysical Review B, 1957
- On Atomic Properties which make an Element a MetalPhysical Review B, 1927