Indices de refraction et birefringence spontanee de l'orthophosphate de plomb ferroelastique |
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| Authors: | J Torres J Aubree J Brandon |
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| Institution: | Centre National d''Etudes des Télécommunications, 92220 Bagneux, France |
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| Abstract: | Refraction indices at room temperature and the temperature dependence of the spontaneous birefringence have been measured in ferroelastic lead orthophosphate. The 180°C phase transition in this material has been determined as a thermodynamic first order transition. |
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