Precision sample rotator with active angular position readout for a superconducting quantum interference device susceptometer

被引：5

作者：

Bhattacharya, A ^{[1
]}

Tuominen, MT ^{[1
]}

Goldman, AM ^{[1
]}

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1998年 / 69卷 / 10期

关键词：

D O I：

10.1063/1.1149138

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A technique has been devised for precise in situ sample angular positioning and readout in a commercial superconducting quantum interference device (SQUID) susceptometer. The axis of rotation is perpendicular to the applied magnetic field and the temperature range is from 2 K up to room temperature. The technique has an accuracy in angular position of about 0.3%, approximately one degree over one complete rotation. A small coil with an ac current excitation is fixed on the sample stage, and the ac SQUID response is used to determine the angular position of the stage. (C) 1998 American Institute of Physics. [S0034-6748(98)00710-2].

引用

页码：3563 / 3567

页数：5

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