FARADAY FORCE MAGNETOMETER FOR HIGH-SENSITIVITY MAGNETIZATION MEASUREMENTS AT VERY-LOW TEMPERATURES AND HIGH FIELDS

被引：197

作者：

SAKAKIBARA, T

MITAMURA, H

TAYAMA, T

AMITSUKA, H

机构：

[1] Department of Physics, Hokkaido University, Sapporo

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 9A期

关键词：

FARADAY FORCE MAGNETOMETER; 3-TERMINAL CAPACITANCE METHOD; DILUTION REFRIGERATOR; HIGH MAGNETIC FIELDS; HEAVY-ELECTRON SYSTEMS;

D O I：

10.1143/JJAP.33.5067

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A Faraday force magnetometer has been developed for static magnetization measurements at very low temperatures down to 100 mK and in fields up to 9 T. The magnetic force acting on a specimen located in the adiabatic vacuum chamber of a dilution refrigerator is detected by a newly designed load-sensing variable capacitor. Use of a superconducting magnet with gradient coils enables accurate measurement of magnetic moment with a resolution of better than 1 x 10(-7) A.m(2) (1 x 10(-4) emu). An application to magnetization measurements on the heavy-electron antiferromagnet CeB6 is presented.

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页码：5067 / 5072

页数：6

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