Defects of Non-Stoichiometry and Dynamic Stability of SnTe Crystal Lattice

• Authors: E. Rogacheva , N. Sinelnik , O. Nashchekina , V. Popov , T. Lobkovskaya
• Languages of publication: EN

Abstracts

EN

The temperature dependencies of coefficient of linear expansion α in the range of 4.2-300 K were obtained for SnTe samples with various degrees of deviation from stoichiometry. For the sample of stoichiometric composition in the α vs. temperature curves the anomalies connected with ferroelectric phase transition were detected. It was found that within cubic phase existence region α isotherms have a minimum at 50.4 at.% Te. Maximum dynamic stability at indicated composition is believed to be associated with the formation of vacancy superstructure.

Keywords

EN

61.70.Bv; 65.70.+y

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 84
• Issue: 4
• Pages: 733-736

Dates

published

1993-10

Contributors

author

E. Rogacheva

• Polytechnical Institute, 21, Frunze St., Kharkov 310002, Ukraine

author

N. Sinelnik

• Polytechnical Institute, 21, Frunze St., Kharkov 310002, Ukraine

author

O. Nashchekina

• Polytechnical Institute, 21, Frunze St., Kharkov 310002, Ukraine

author

V. Popov

• Kharkov State University, 4, Svoboda Sq., Kharkov 310077, Ukraine

author

T. Lobkovskaya

• Kharkov State University, 4, Svoboda Sq., Kharkov 310077, Ukraine

Identifiers

DOI

10.12693/APhysPolA.84.733