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Article
Dispersion of electro-optic coefficients in sillenite crystals
The photorefractive crystals of the sillenite family (Bi12SiO20 or BSO, Bi12GeO20 or BGO, and Bi12TiO20 or BTO) that belong to the cubic 23 point group are optically active, and exhibit the piezoelectric, elasto-...
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Article
Studying Cu2–xSe phase transformation through DSC examination
The thermal effect accompanying the transition of Cu2–xSe into a superionic conduction state was studied by non-isothermal measurements, at different heating and cooling rates (β=1, 2.5, 5, 10 and 20°C min–1). Du...
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Article
Modulated Phases and Domain Structure in Double Niobates with Tetragonal Tungsten Bronze — Like Structure
The domain structure and the commensurate — incommensurate transition of some niobates, with general formula A2BNb5O15 where A = Ba, Sr or Pb and B = Na or K, are examined by using electron microscopy and electro...