Abstract
Solid solutions of CsCl-Br in different molal concentrations were prepared and X-ray diffractograms taken. The integrated intensities of the Bragg peaks have been estimated and structure factors were obtained. The crystal lattice in each of these solid solution samples is made up of a random distribution of Cs+, Cl− and Br− ions depending upon the molal concentration. A pseudo-atom model has been proposed in which the Cs+ ions occupy (000) position and a pseudo-atom occupies (1/2 1/2 1/2) position. The presence of incoherence scattering in these solid solutions has been considered by applying the necessary correction to the atomic scattering factors. The integrated intensities have been analysed and the temperature variation of the Debye-Waller factors of the metal (Cs+) ion and the pseudo ion (CB−) have been estimated.
Similar content being viewed by others
References
Chipman D R and Paskin A J 1959J. Appl. Phys. 30 1998
Dernier P D, Weber W and Longinotti L D 1976Phys. Rev. B14 3635
Ganesan V and Girirajan K S 1987Pramana — J. Phys. 28 1 73
Ganesan V and Girirajan K S 1988aPramana — J. Phys. 30 331
Ganesan V and Girirajan K S 1988bPramana — J. Phys. 30 337
Hari Babu V and Subba Rao K V 1984Prog. Crystallogr. Growth Charact. 8 189
Sirdeshmukh D B and Srinivas K 1986J. Mater. Sci. (in Press)
Srinivasan R and Girirajan K S 1982Pramana — J. Phys. 19 203
Warren B E 1969X-ray diffraction (New York: Addison-Wesley)
Willis B T M 1973Chemical application of thermal neutron scattering Harwell series (Oxford: University Press)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ganesan, V., Girirajan, K.S. Temperature variation of the Debye-Waller factors of metal and halide ions in CsCl-Br solid solutions between room temperature and 90°K by powder X-ray diffraction. Pramana - J. Phys. 30, 407–417 (1988). https://doi.org/10.1007/BF02935595
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02935595
Keywords
- Cryostat
- powder X-ray diffraction
- Debye-Waller factors
- pseudo atom model
- thermal diffuse scattering correction
- structure factor least squares