Faraday force magnetometer for high-sensitivity magnetization measurements at very low temperatures and high fields

Toshiro Sakakibara, Hiroyuki Mitamura, Takashi Tayama, Hiroshi Amitsuka

Research output: Contribution to journalArticlepeer-review

204 Scopus citations

Abstract

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 × 10-7 A·m2 (l × 10-4 emu). An application to magnetization measurements on the heavy- electron antiferromagnet CeB6 is presented.

Original languageEnglish
Pages (from-to)5067-5072
Number of pages6
JournalJapanese Journal of Applied Physics
Volume33
Issue number9 R
DOIs
StatePublished - 1994/09

Keywords

  • Dilution refrigerator
  • Faraday force magnetometer
  • Heavy-electron systems
  • High magnetic fields
  • Three-terminal capacitance method

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy

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