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arXiv · 2308.11097

Stroboscopic Time-of-Flight Neutron Diffraction in Long Pulsed Magnetic Fields

Taro Nakajima·Masao Watanabe·Yasuhiro Inamura·Kazuki Matsui·Tomoki Kanda·Tetsuya Nomoto·Kazuki Ohishi·Yukihiko Kawamura·Hiraku Saito·Hiromu Tamatsukuri·Noriki Terada·Yoshimitsu Kohama
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Abstract

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 $10^2$ 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 $10^1$ 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 CuFe$_{1-x}$Ga$_x$O$_2$ ($x=0, 0.035$).

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Taro Nakajima, Masao Watanabe, Yasuhiro Inamura, Kazuki Matsui, Tomoki Kanda, Tetsuya Nomoto, Kazuki Ohishi, Yukihiko Kawamura, Hiraku Saito, Hiromu Tamatsukuri, Noriki Terada, Yoshimitsu Kohama. 2023-08-22. Stroboscopic Time-of-Flight Neutron Diffraction in Long Pulsed Magnetic Fields. https://arxiv.org/abs/2308.11097

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