The lattice parameters of CsBr at eight different temperatures from room temperature to 78.2 °K were measured and the true lattice parameters were obtained by the least squares method using the Nelson-Riley extrapolation function. Using these parameters the thermal expansion coefficients of CsBr were estimated at each temperature by fitting them into a cubic polynomial involving temperatureT. TheαT thus obtained were compared with the values of earlier workers who used an interferometric technique and the agreement was found to be good.
Volume 96, 2022
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