Influence of the growth and annealing atmosphere on the electrical conductivity of LTG crystals
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Influence of the growth and annealing atmosphere on the electrical conductivity of LTG crystals |
| Type de publication | Journal Article |
| Year of Publication | 2017 |
| Auteurs | Alani M., Batis N., Laroche T., Nehari A., Cabane H., Lebbou K., Boy J.J |
| Journal | OPTICAL MATERIALS |
| Volume | 65 |
| Pagination | 99-102 |
| Date Published | MAR |
| Type of Article | Article; Proceedings Paper |
| ISSN | 0925-3467 |
| Mots-clés | Czochralski method, Defects, Electrical conductivity, Langasite family |
| Résumé | We present the electrical conductivity measurements of La3Ga5.5,Ta0.5O14 (LGT) crystals grown by Czochralski (Cz) technique in Ir crucibles and N-2 atmosphere containing few percent of O-2. In addition, we have studied the effect of thermal annealing on the stability and the thermal conductivity. The electrical conductivity depends on the stoichiometry, the inhomogeneous impurities levels, the growth atmosphere and the post-growth annealing conditions. Furthermore, we recorded the UV-Vis transmission spectra of the LGT samples and we note that the less resistive LGT samples have an edge of the intrinsic absorption at the highest wavelengths. (C) 2016 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.optmat.2016.09.072 |