Temperature Analysis of Structural Changes in SrxBa1-xNb2O6 Single Crystals

Robert Paszkowski; Krystyna Wokulska; Jan Dec

doi:10.4028/www.scientific.net/SSP.203-204.77

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HomeSolid State PhenomenaSolid State Phenomena Vols. 203-204Temperature Analysis of Structural Changes in...

Temperature Analysis of Structural Changes in Sr_xBa_1-xNb₂O₆ Single Crystals

Abstract:

Single crystals of Sr_xBa_1-xNb₂O₆ (0.26 a parameter monotonically increases with increasing of temperature, while the c parameter decreases up to the phase transition temperature T_C, and the next it begins increasing slowly. It was ascertained that with the increase of the Sr concentration in the studied crystals the changes of the lattice parameters were observed. They can be described according to the following relations: a = - 2.418 • 10-5 x² + 1.050 • 10-3 x + 12.479 Å and c = - 0.0015 x + 4.0216 Å. Basing on the obtained results the character of the phase transition was able to do.

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Solid State Phenomena (Volumes 203-204)

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77-80

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https://doi.org/10.4028/www.scientific.net/SSP.203-204.77

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June 2013

Authors:

Robert Paszkowski, Krystyna Wokulska, Jan Dec

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Phase Transition, Single Crystal, Strontium Barium Niobate, X-Ray Diffraction (XRD)

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