Ferroelectric phase transition in Ga2Te3 single crystals |
| |
| Authors: | GA Gamal MM Abdalrahman HJ Eman |
| |
| Institution: | a Department of Physics, Faculty of Science, South Valley University, Qena, Egypt
b Department of Physics, Faculty of Science, South Valley University, Aswan, Egypt |
| |
| Abstract: | Measurements of the electrical conductivity and Hall effect were carried out in a wide temperature range (200-500 K) for Ga2Te3 crystals. The crystals were grown in single crystalline form by making a modification of the travelling heater method technique. The measurements revealed unusual observations in the electric conductivity and Hall mobility indicating the presence of some type of phase transitions at about 430 K. So, ferroelectric behavior was examined for confirming the presence of second-order (ferroelectric) phase transition. An energy gap of 1.21 eV and depth of the impurity center of 0.11 eV were found. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
