Turkish Journal of Physics
Effect of Isomorphic Atom Substitution on Lattice Parameters of TlBX_{2}-type Mixed Crystals
DOI
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Abstract
The variation of the lattice parameters of TlBX_{2}-type mixed crystals with composition have been investigated by X-ray diffraction technique. The lattice anisotropy (c/a) of the mixed crystals changes linearly depending on substitution of the atoms located both at the centre and at the vertices of the BX_{4} tetrahedra. For some of the mixed crystals studied, structural phase transition (monoclinic \rightleftharpoons tetragonal) is observed due to atom substitution when the sum of tetrahedral covalent radii of the B and X atoms in BX_{4} tetrahedra reaches a critical value of about 0.255 nm.
First Page
800
Last Page
804
Recommended Citation
ÖZKAN, Hüsnü; GASANLY, Nizami; and ÇULFAZ, Ali (1996) "Effect of Isomorphic Atom Substitution on Lattice Parameters of TlBX_{2}-type Mixed Crystals," Turkish Journal of Physics: Vol. 20: No. 7, Article 12. Available at: https://journals.tubitak.gov.tr/physics/vol20/iss7/12
