Capacitance thermometer using BaxSr1-xTiO3solid solutions

✍ Scribed by Tetsuka, H. ;Takashima, H. ;Prijamboedi, B. ;Wang, R. ;Shoji, A. ;Shan, Y. J. ;Itoh, M.

• Book ID: 105363806
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 234 KB
• Volume: 203
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200622069

✦ Synopsis

Abstract

Parallel capacitors of Ba~x~ Sr~1–x~ TiO~3~ (x = 0.01 and 0.05) were fabricated, and their characteristics as a capacitance thermometer were investigated. The dimensionless temperature sensitivities at 2.5 K for x = 0.01 and 0.05 were found to be 0.041 and 0.026, respectively. Particularly, the value for a capacitor with x = 0.01 is five times larger than those of commercially available ferroelectric doped SrTiO~3~ capacitance thermometers. These results reveal that a parallel‐plate capacitor using quantum ferroelectric Ba~x~ Sr~1–x~ TiO~3~ has a potential application as a capacitance thermometer for monitoring cryogenic temperatures in a high magnetic field. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)