Capacitance temperature sensor using epitaxial SrTiO3 film with a single-crystal-like behavior

被引：13

作者：

Takashima, H

Wang, RP

Shirakawa, N

Prijamboedi, B

Shoji, A

Itoh, M

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[2] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

THIN SOLID FILMS | 2005年 / 486卷 / 1-2期

关键词：

SrTiO3 thin film; dielectrics; quantum paraelectricity; capacitance temperature sensor;

D O I：

10.1016/j.tsf.2004.11.242

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A parallel capacitor of epitaxially grown YBa2Cu3O7-delta/SrTiO3/YBa2Cu3O7-delta was fabricated by a chemical mechanical planarization method and its characteristics as a capacitance thermometer were investigated. The capacitance, temperature sensitivity, and dimensionless temperature sensitivity of the elements were found to be 1.7 nF, 10 pF/K, and 0.01 at 2.2 K, respectively. These values are of the same order as that of a commercially available bulk doped-SrTiO3 capacitance temperature sensor. These results reveal that the parallel capacitor with quantum paraelectric SrTiO3 film has potential for use in capacitance thermometers for monitoring cryogenic temperatures under high magnetic fields. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：145 / 148

页数：4

共 13 条

[1] SR1-XCAXTIO3 - AN XY QUANTUM FERROELECTRIC WITH TRANSITION TO RANDOMNESS [J].