DocumentCode
2782100
Title
Observation of soft-mode hardening and broadening in SrTiO3 thin films by broadband terahertz time-domain spectroscopy
Author
Katayama, Ikufumi ; Shimosato, Hiroshi ; Ashida, Masaaki ; Kawayama, Iwao ; Tonouchi, Masayoshi ; Itoh, Tadashi
Author_Institution
Graduate school of engineering science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, 560-8531, Japan
fYear
2007
fDate
6-11 May 2007
Firstpage
1
Lastpage
2
Abstract
Complex dielectric constants of SrTiO3 thin films have been measured using the broadband terahertz time-domain spectroscopy. The broad detection-bandwidth of the photoconductive antenna enables us to clarify soft-mode dispersions as well as the TO2 mode.
Keywords
Antenna measurements; Dielectric constant; Dielectric thin films; Electrochemical impedance spectroscopy; Ferroelectric materials; Photoconductivity; Pulsed laser deposition; Substrates; Time domain analysis; Transistors;
fLanguage
English
Publisher
ieee
Conference_Titel
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location
Baltimore, MD, USA
Print_ISBN
978-1-55752-834-6
Type
conf
DOI
10.1109/QELS.2007.4431007
Filename
4431007
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