ELASTIC CONSTANTS OF CsBr AND CsI FROM 4.2 K TO ROOM TEMPERATURE
Journal Article
·
· Journal of Applied Physics (U.S.)
The elastic constants of pure singie crystals of CsBr and CsI were measured at liquid-helium, liquid-nitrogen, and room temperatures. For CsBr, the values of c/sub 11/, c/sub 12/, and c/sub 44/ at 4.2 deg K are 3.437, 1.035, and 0.999 in units of 10/sup 10/ N/m/sup The corresponding values of CsI at 4.2 deg K are 2.737, 0.793, and 0.825 x 10/sup 10/ N/m/sup 2/. The elastic constants give the Debye temperature 148.8 deg K for CsBr and 125.6 deg K for CsI. The infrared resonance frequencies calculated from compressibility data are in agreement with those obtained from infrared spectroscopy. (auth)
- Research Organization:
- Uppsala Univ.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-014614
- OSTI ID:
- 4071183
- Journal Information:
- Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 35; ISSN JAPIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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