### 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_{3ω}. Generally, the magnitude of χ_{3ω} is at most a few percent of the linear component, χ_{1ω}, connected with the linear susceptibility, χ^{(0)}. At GPa-level pressures generated using a diamond anvil cell, the detection of χ_{3ω} becomes more difficult, because of the small amount of measurement sample. We propose an effective method of measuring χ_{3ω} using a superconducting quantum interference device magnetometer and a statistics average technique. The experimental results for an inorganic chiral magnet, Cr_{1/3}NbS_{2}, indicate the efficiency of this technique and demonstrate that magnetic signals of the order of 10^{-9} emu can be detected.

Original language | English |
---|---|

Article number | 012182 |

Journal | Journal of Physics: Conference Series |

Volume | 215 |

DOIs | |

Publication status | Published - May 12 2010 |

Externally published | Yes |

### ASJC Scopus subject areas

- Physics and Astronomy(all)

## Fingerprint Dive into the research topics of 'Nonlinear magnetic susceptibility measurements at GPa-level pressures'. Together they form a unique fingerprint.

## Cite this

*Journal of Physics: Conference Series*,

*215*, [012182]. https://doi.org/10.1088/1742-6596/215/1/012182