Influence of Mechanical Stress on the Birefringence Properties of (N(CH3)4)2ZnCl4 Crystals |
| I. Polovinko, S. Sveleba, O. Vlokh and V. Zhmurko Lviv University, Physical Department, Lomonosova str. 8, 290005, Lviv, Ukraine |
| Received: September 27, 1991; in final form: January 2, 1992 |
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| The influence of applied mechanical stress on the birefringence of (N(CH3)4)2ZnCl4 crystal in the temperature region of its incommensurate phase was investigated using Senarmonth's method (λ = 633 nm). The value of pinning force for the samples with different defectiveness was experimentally determined. |
| DOI: 10.12693/APhysPolA.81.409 PACS numbers: 77.80.Bh |