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We present proof-of-principle experiments of stroboscopic time-of-flight (TOF) neutron diffraction in long pulsed magnetic fields. By utilizing electric double-layer capacitors, we developed a long pulsed magnet for neutron diffraction measurements, which generates pulsed magnetic fields with the full widths at the half maximum of more than 102 ms. The field variation is slow enough to be approximated as a steady field within the time scale of a polychromatic neutron pulse passing through a sample placed in a distance of the order of 101 m from the neutron source. This enables us to efficiently explore the reciprocal space using a wide range of neutron wavelength in high magnetic fields. We applied this technique to investigate field-induced magnetic phases in the triangular lattice antiferromagnets CuFe1−xGaxO2 (x = 0,0.035).

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• Creative Commons BY Attribution 4.0 International
  

Keyword: neutron diffraction, pulsed magnetic field, frustration

Date published: 2024-05-01

Publisher: American Physical Society (APS)

Journal:

• Physical Review Research (ISSN: 26431564) vol. 6 issue. 2 023109

Funding:

• Japan Society for the Promotion of Science 22H00104
• Japan Society for the Promotion of Science 2021B0070
• Japan Society for the Promotion of Science 2022L0301
• Japan Society for the Promotion of Science 23KJ0502

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1103/physrevresearch.6.023109

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Updated at: 2024-05-09 16:30:28 +0900

Published on MDR: 2024-05-09 16:30:28 +0900