Optical detection of magnetic orders in HgCr₂O₄ frustrated spin magnet under pulsed high magnetic fields
Nakamura, Daisuke · Miyata, Atsuhiko · Ueda, Hiroaki · Takeyama, Shojiro
الأصل · EN
A magneto-optical survey was conducted for HgCr₂O₄ 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, ZnCr₂O₄ and CdCr₂O₄.
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