論文

査読有り
2004年

Time-domain terahertz spectroscopy of strontium bismuth tantalate thin films

FERROELECTRIC THIN FILMS XII
  • K Kotani
  • ,
  • M Misra
  • ,
  • Kawayama, I
  • ,
  • M Tonouchi

784
開始ページ
339
終了ページ
344
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
出版者・発行元
MATERIALS RESEARCH SOCIETY

We have measured the dielectric and optical properties of pulsed laser deposited SrBi2Ta2O9 and Sr0.8Bi2.2Ta2O9 thin films on MgO substrate in THz frequency region by THz time-domain spectroscopy. The imaginary parts of the dielectric constant of both the samples show broad peaks in the frequency range 0.5-1.0 THz, which may be due to the soft mode in SBT in this frequency spectrum. The difference in the real part of the dielectric constant of Sr0.8Bi2.2Ta2O9 thin films is small for MHz and THz frequencies. On the other hand, the value of real part of dielectric constant of SrBi2Ta2O9 thin films in THz frequency range is much smaller than that in MHz frequency region, indicating that SrBi2Ta2O9 is not simply displacive ferroelectric material.

リンク情報
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000222178100053&DestApp=WOS_CPL
ID情報
  • ISSN : 0272-9172
  • Web of Science ID : WOS:000222178100053

エクスポート
BibTeX RIS