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arXiv · 2307.09082

Field-induced magnetic structures in the chiral polar antiferromagnet Ni$_2$InSbO$_6$

Y. Ihara·R. Hiyoshi·M. Shimohashi·R. Kumar·T. Sasaki·M. Hirata·Y. Araki·Y. Tokunaga·T. Arima
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Abstract

We have performed $^{115}$In-NMR spectroscopy for Ni$_{2}$InSbO$_6$ with corundum-related crystal structure to reveal magnetic structures that develop in high magnetic fields. At low fields Ni$_{2}$InSbO$_6$ shows a helical magnetic order with a long wavelength because of its chiral and polar crystal structure. The field-induced magnetic state was not investigated by microscopic experiment because an extremely high magnetic field is required to modify the antiferromagnetically coupled helical structure. From the analysis of our $^{115}$In-NMR spectra obtained at high magnetic fields, we confirm that the canted antiferromagnetic structure appears in fields applied in the $[110]$ direction and the propagation vector of magnetic helix is rotated toward the field direction for fields in the $[001]$ direction. We discuss the effect of magnetic field that modifies the magnetic structure of an antiferromagnetic chiral magnet.

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Y. Ihara, R. Hiyoshi, M. Shimohashi, R. Kumar, T. Sasaki, M. Hirata, Y. Araki, Y. Tokunaga, T. Arima. 2023-07-18. Field-induced magnetic structures in the chiral polar antiferromagnet Ni$_2$InSbO$_6$. https://doi.org/10.1103/physrevb.108.024417

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