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

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${}_4$.

8 pages, 2 figures

References in corpus (1)

• Monte Carlo study of half-magnetization plateau and magnetic phase diagram in pyrochlore antiferromagnetic Heisenberg model

Cited by in corpus (4)

• Magnetization process of the breathing pyrochlore magnet CuInCr${}_4$S${}_8$ in ultra-high magnetic fields up to 150 T
• Effects of spin-lattice coupling and a magnetic field in classical Heisenberg antiferromagnets on the breathing pyrochlore lattice
• Novel quantum phase of the chromium spinel oxide HgCr${}_2$O${}_4$ in high magnetic fields
• On the complexity of spinels: Magnetic, electronic, and polar ground states