Magnetostriction studies up to megagauss fields using fiber Bragg grating technique

Akihiko Ikeda, Yasuhiro H. Matsuda, Daisuke Nakamura, Shojiro Takeyama, Hiroshi Tsuda, Kazuya Nomura, Ayumi Shimizu, Akira Matsuo, Toshihiro Nomura, Tatsuo Kobayashi, Takeshi Yajima, Hajime Ishikawa, Zenji Hiroi, Masahiko Isobe, Touru Yamauchi, Keisuke Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We here report magnetostriction measurements under pulsed megagauss fields using a high-speed 100 MHz strain monitoring system devised using fiber Bragg grating (FBG) technique with optical filter method. The optical filter method is a detection scheme of the strain of FBG, where the changing Bragg wavelength of the FBG reflection is converted to the intensity of reflected light to enable the 100 MHz measurement. In order to show the usefulness and reliability of the method, we report the measurements for solid oxygen, spin-controlled crystal, and volborthite, a deformed Kagomé quantum spin lattice, using static magnetic fields up to 7 T and non-destructive millisecond pulse magnets up to 50 T. Then, we show the application of the method for the magnetostriction measurements of CaV, a two-dimensional antiferromagnet with spin-halves, and LaCoO, an anomalous spin-crossover oxide, in the megagauss fields.

Original languageEnglish
Title of host publication2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics, MEGAGAUSS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538657652
DOIs
Publication statusPublished - May 24 2019
Event16th International Conference on Megagauss Magnetic Field Generation and Related Topics, MEGAGAUSS 2018 - Kashiwa, Japan
Duration: Sep 25 2018Sep 29 2018

Publication series

Name2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics, MEGAGAUSS 2018 - Proceedings

Conference

Conference16th International Conference on Megagauss Magnetic Field Generation and Related Topics, MEGAGAUSS 2018
CountryJapan
CityKashiwa
Period9/25/189/29/18

Keywords

  • Fiber Bragg grating (FBG)
  • magnetostriction
  • megagauss
  • ultrahigh magnetic field

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Ikeda, A., Matsuda, Y. H., Nakamura, D., Takeyama, S., Tsuda, H., Nomura, K., Shimizu, A., Matsuo, A., Nomura, T., Kobayashi, T., Yajima, T., Ishikawa, H., Hiroi, Z., Isobe, M., Yamauchi, T., & Sato, K. (2019). Magnetostriction studies up to megagauss fields using fiber Bragg grating technique. In 2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics, MEGAGAUSS 2018 - Proceedings [8722656] (2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics, MEGAGAUSS 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEGAGAUSS.2018.8722656