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  • A time-domain THz transmission experiment was performed on a SrBi2Ta2O9 film deposited on a sapphire substrate. Temperatures between 300 and 923 K were investigated and complex permittivity spectrs of the film were determined. The lowest-frequency optical phonon near 28 cm-1 reveals no significant anomaly near the phase transitions. We show that dielectric anomaly near the ferroelectric phase transition can be explained by the slowing down of a relaxational mode observed in the THz spectra
  • A time-domain THz transmission experiment was performed on a SrBi2Ta2O9 film deposited on a sapphire substrate. Temperatures between 300 and 923 K were investigated and complex permittivity spectrs of the film were determined. The lowest-frequency optical phonon near 28 cm-1 reveals no significant anomaly near the phase transitions. We show that dielectric anomaly near the ferroelectric phase transition can be explained by the slowing down of a relaxational mode observed in the THz spectra (en)
  • Komplexní dielektrická spektra vrystvy SrBi2Ta2O9 na safírovém substrátu v teplotním intervalu 300--23 K byla změřena pomocí terahertzové spketroskopi v časové doméně. Optický fonon s nejnižší frekvencí (u 28 cm-1) nevykazuje žádnou anomálii v blízkosti fázových přechodů. Ukazujeme, že dielektrická anomálie poblíž fotoelektrického přechodu může být vysvětlena měknutím relaxačního módu v terahertzových spektrech (cs)
Title
  • High-temperature phase transitions in SrBi2Ta2O9 film: a study by THz spectroscopy
  • High-temperature phase transitions in SrBi2Ta2O9 film: a study by THz spectroscopy (en)
  • Vysokoteplotní fázové přechody v tenké vrystvě SrBi2Ta2O9 studované pomocí terahertzové spektroskopie (cs)
skos:prefLabel
  • High-temperature phase transitions in SrBi2Ta2O9 film: a study by THz spectroscopy
  • High-temperature phase transitions in SrBi2Ta2O9 film: a study by THz spectroscopy (en)
  • Vysokoteplotní fázové přechody v tenké vrystvě SrBi2Ta2O9 studované pomocí terahertzové spektroskopie (cs)
skos:notation
  • RIV/68378271:_____/04:00029286!RIV06-AV0-68378271
http://linked.open.../vavai/riv/strany
  • 6763;6769
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/04/0993), P(IAA1010213), P(KSK1010104), P(LN00A032), Z(AV0Z1010914)
http://linked.open...iv/cisloPeriodika
  • -
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 566190
http://linked.open...ai/riv/idVysledku
  • RIV/68378271:_____/04:00029286
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • THz spectroscopy; ferroelectricity; phase transitions (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [31A95E4F9FD7]
http://linked.open...i/riv/nazevZdroje
  • Journal of Physics. Condensed Matter
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 16
http://linked.open...iv/tvurceVysledku
  • Kamba, Stanislav
  • Kužel, Petr
  • Petzelt, Jan
  • Kadlec, Christelle
  • Kadlec, Filip
  • Kroupa, Jan
http://linked.open...n/vavai/riv/zamer
issn
  • 0953-8984
number of pages
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