| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1517208 | Journal of Physics and Chemistry of Solids | 2008 | 4 Pages |
Abstract
Effect of illumination on negative thermal expansion of TlGaSe2 crystals has been investigated. Strong trasformation of negative linear expansion coefficient has been observed after the illuminations. It is supposed that two main mechanisms are responsible for observed effect: formation of photoelectret states and reverse piezoelectric effect. The electronic nature of negative linear expansion of TlGaSe2 crystals has been proved for the first time.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
MirHasan Yu. Seyidov, Rauf A. Suleymanov, Emin Yakar, N.A. Abdullayev, T.G. Mammadov,