Premium
Lattice Thermal Expansion in CuGaT 2 and CuInTe 2 Compounds over the Temperature Range 80 to 650 K from X‐ray Diffracion Data
Author(s) -
Bodnar I. V.,
Orlova N. S.
Publication year - 1986
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170210825
Subject(s) - thermal expansion , atmospheric temperature range , atom (system on chip) , anisotropy , chemistry , lattice (music) , diffraction , crystallography , lattice constant , materials science , thermodynamics , physics , optics , metallurgy , embedded system , computer science , acoustics
The lattice parameters a and c as well as the thermal expansion coefficients α⟂ and α∥ in the two principal direction for CuGaTe 2 and CuInTe 2 chalcopyrite‐type compounds have been determined as a function of temperature in the range from 80 to 650 K by the X‐ray diffraction method. It is found for both the compounds the coefficient of expansion along the α axis (α⟂) is larger than that along the c axis (α∥) over the whole investigated tem‐perature range. When comparing the results for a series of the CuB III C VI 2compounds (BGa, In; CS, Se, Te) it is shown that the thermal expansion anisotropy increases strongly when the Ga atom replaces the In atom while it changes a little when the Te atom replaces the Se atom or the S atom.