Doping effect of Nb on ionic polarization of SrTiO3

THz dielectric spectra of Nb-doped SrTiO3 single crystals were measured using the far-infrared spectroscopic ellipsometer to understand the doping effect of Nb on ionic polarization. The frequency of the Slater transverse optical (TO) mode increased with the doping amount of Nb, meaning the decrease...

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Veröffentlicht in:	Journal of the Ceramic Society of Japan 2019/06/01, Vol.127(6), pp.357-361
Hauptverfasser:	NISHIYAMA, Junji, KANEHARA, Kazuki, TAKEDA, Hiroaki, TSURUMI, Takaaki, HOSHINA, Takuya
Format:	Artikel
Sprache:	eng
Schlagworte:	Dielectric property Doping Ellipsometer Far infrared radiation First principles First-principles calculation Ionic polarization Niobium Polarization Single crystals Strontium titanate Strontium titanates THz response
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