Author: Arunas Krotkus

0000000000729118

AUTHOR

Arunas Krotkus

showing 2 related works from this author

Broadband Dielectric Spectroscopy of Ferroelectric Phase Transitions in PbSc1/2Nb1/2O3Ordered Ceramics

2008

Broadband dielectric spectroscopy of PbSc 1/2 Nb 1/2 O 3 (PSN) ordered ceramics are reported within the range of 20 Hz ≤ ν ≤ 2 THz in 80 K ≤ T ≤ 300 K temperatures. Spectrally very broad dielectric dispersion consisting of two parts − at lower frequencies, ferroelectric domains cause a dispersion and at higher frequencies, higher temperatures the relaxation soft mode is responsible for the dispersion. The relaxation soft mode exhibit pronounced hardening on cooling, whilst the ferroelectric phase transition is connected with an abrupt freezing and rise of polar nanoregions into ferroelectric domains.

Phase transitionMaterials scienceCondensed matter physicsTerahertz radiationbusiness.industryRelaxation (NMR)Soft modesCondensed Matter PhysicsFerroelectricityElectronic Optical and Magnetic MaterialsDielectric spectroscopyOpticsvisual_artDispersion (optics)visual_art.visual_art_mediumCeramicbusinessFerroelectrics

researchProduct

Terahertz Spectroscopy of Ordered PbSc1/2Nb1/2O3Ceramics

2008

Materials scienceCondensed matter physicsGeneral Physics and AstronomyTerahertz spectroscopy and technologyActa Physica Polonica A

researchProduct

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