Investigation of the Mossbauer line fine structure of a new α<sub>2</sub>-Sn allotropic form
V Rusanov; Ts Bonchev; I Mandjukov; M Mihov; V Rusanov; Dept. of Atomic Phys., Sofia Univ., Bulgaria; Ts Bonchev; Dept. of Atomic Phys., Sofia Univ., Bulgaria; I Mandjukov; Dept. of Atomic Phys., Sofia Univ., Bulgaria; M Mihov; Dept. of Atomic Phys., Sofia Univ., Bulgaria
Журнал:
Journal of Physics F: Metal Physics
Дата:
1986-04-01
Аннотация:
A fine structure of the Mossbauer line of the new alpha <sub>2</sub>-Sn allotropic form has been observed. The isomeric shifts of five alpha <sub>2</sub>-Sn substructures have been determined. The Mossbauer data have been considered together with X-ray diffraction ones. It is shown that the isomeric shift increases when the lattice parameter of alpha <sub>2</sub>-Sn substructure decreases. Magnetic measurements of the susceptibility of samples containing a significant quantity of alpha <sub>2</sub>-Sn have been carried out. The problem with the alpha <sub>2</sub>-Sn isomeric shift interpretation has been discussed. Considerations have been given to the causes of the formation of the new crystalline structures.
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