X-Ray and Neutron Diffraction Studies on Thermal Parameters of Thalous Bromide

材料科学技术（英文）, 2003, 19(2): 189-190.

^1, , ^2, , ^3, , ^4,

1.Pakistan Institute of Nuclear Science & Technology, P.O. Nilore, Islamabad, Pakistan

2.Pakistan Institute of Nuclear Science & Technology, P.O. Nilore, Islamabad, Pakistan

3.Institute of Materials Sciences, University of Tsukuba, Tennodai, 1-1-1, Tsukuba-Shi, Ibaraki 305, Japan

4.Institute of Materials Sciences, University of Tsukuba, Tennodai, 1-1-1, Tsukuba-Shi, Ibaraki 305, Japan

X-Ray and Neutron Diffraction Studies on Thermal Parameters of Thalous Bromide

Thermal parameters of TIBr were determined using both X-ray and neutron diffraction techniques. The data was analysed by Rietveld profile refinement procedure. From the neutron diffraction data, due to weak odd-order reflections, it was not possible to determine the individual thermal parameters. The X-ray diffraction measurements yielded BT1=0.296(5) nm2 and BBr=0.162(5) nm2. The overall isotropic value, B was 0.252(7) nm2 which is in good agreement with B=0.230(8) nm2 obtained from present neutron diffraction measurements. The present values are also in good agreement with theoretical estimates obtained from the shell models.

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X-Ray and Neutron Diffraction Studies on Thermal Parameters of Thalous Bromide

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