Nonlinear magnetic susceptibility measurements at GPa-level pressures

M. Mito, S. Tominaga, Y. Komorida, H. Deguchi, S. Takagi, Y. Nakao, Y. Kousaka, J. Akimitsu

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The second nonlinear susceptibility, χ(2), reflects magnetic domain formation. At zero DC field, the temperature dependence of χ(2) can be obtained through that of the third-harmonic AC susceptibility, χ. Generally, the magnitude of χ is at most a few percent of the linear component, χ, connected with the linear susceptibility, χ(0). At GPa-level pressures generated using a diamond anvil cell, the detection of χ becomes more difficult, because of the small amount of measurement sample. We propose an effective method of measuring χ using a superconducting quantum interference device magnetometer and a statistics average technique. The experimental results for an inorganic chiral magnet, Cr1/3NbS2, indicate the efficiency of this technique and demonstrate that magnetic signals of the order of 10-9 emu can be detected.

Original languageEnglish
Article number012182
JournalJournal of Physics: Conference Series
Volume215
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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