ULTRA-STABLE CRYOGENIC SAPPHIRE DIELECTRIC MICROWAVE RESONATORS - MODE FREQUENCY-TEMPERATURE COMPENSATION BY RESIDUAL PARAMAGNETIC IMPURITIES

被引：33

作者：

MANN, AG

GILES, AJ

BLAIR, DG

BUCKINGHAM, MJ

机构：

[1] Department of Physics, The University of Western Australia, Nedlands, WA

[2] Department of Physics, The University of Western Australia, Nedlands, WA

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1992年 / 25卷 / 07期

关键词：

D O I：

10.1088/0022-3727/25/7/012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Residual paramagnetic impurities in a sapphire monocrystal multi-mode resonator can provide a means of temperature compensation so that the effect of temperature fluctuations on the frequency of an ultra-stable cryogenic microwave oscillator can be reduced to second order. Modes investigated at X-band in 3 and 5 cm diameter resonators exhibited a wide range of effective paramagnetic filling factors, and frequency-temperature turning points in the range 5 to 13 K. The observations agree well with theory.

引用

页码：1105 / 1109

页数：5

共 15 条

[1]

ABRAGAM A, 1970, ELECT PARAMAGNETIC R, P116

[2] THE PROPERTIES OF SUPERCONDUCTING RESONATORS ON SAPPHIRE [J].