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arXiv · 1505.03216

Optical detection of magnetic orders in HgCr$_2$O$_4$ frustrated spin magnet under pulsed high magnetic fields

Daisuke Nakamura·Atsuhiko Miyata·Hiroaki Ueda·Shojiro Takeyama
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Abstract

A magneto-optical survey was conducted for HgCr$_2$O$_4$ powder samples under pulsed high magnetic fields of up to 55 T. Intensity changes in magnetic fields observed for the exciton-magnon-phonon optical transition spectra coincide well with those of magnetization, lattice distortion from X-ray diffraction, and electron-magnetic resonances. The last-ordered phase was detected prior to the fully polarized magnetic phase, similarly to the other chromium spinel oxide, ZnCr$_2$O$_4$ and CdCr$_2$O$_4$.

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Daisuke Nakamura, Atsuhiko Miyata, Hiroaki Ueda, Shojiro Takeyama. 2015-05-13. Optical detection of magnetic orders in HgCr$_2$O$_4$ frustrated spin magnet under pulsed high magnetic fields. https://doi.org/10.7566/jpsj.83.113703

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