Superconducting microwave resonator for millikelvin magnetic resonance force microscopy

被引：15

作者：

Mamin, HJ ^{[1
]}

Budakian, R ^{[1
]}

Rugar, D ^{[1
]}

机构：

[1] IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2003年 / 74卷 / 05期

关键词：

D O I：

10.1063/1.1564278

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have fabricated a superconducting resonator capable of generating a strong microwave magnetic field in a small (100 mum) volume for low temperature magnetic resonance experiments. While the resonator was specifically developed for use at millikelvin temperatures in a dilution refrigerator, where the total cooling power is limited to a few hundred microwatts, it is also useful at temperatures up to 5 K. The resonator consists of a 220 mum diameter, 2-1/2 turn niobium coil resonating with a short section of niobium microstripline. At a resonance frequency of 3 GHz, the loaded Q of the resonator was 780. The field strength was characterized by performing electron spin nutations. Operating at 100 mK with 320 muW of dissipated power, the resonator generated a field of 4 G at a distance of 100 mum from the coil. (C) 2003 American Institute of Physics.

引用

页码：2749 / 2753

页数：5

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