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arXiv · 1108.1932

Magnetic phases of a highly frustrated magnet, ZnCr2O4, up to an ultra-high magnetic field of 600 T

Atsuhiko Miyata·Hiroaki Ueda·Yutaka Ueda·Hironobu Sawabe·Shojiro Takeyama
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Abstract

The Faraday rotation and magneto-optical absorption spectral measurements were conducted to reveal the full-magnetization process and map out a magnetic phase diagram of a typical geometrical frustrated magnet, ZnCr2O4, by using the electromagnetic flux compression method in ultra-magnetic fields up to 600 T. A fully polarized ferromagnetic phase is observed in which the absorption spectra associated with an exciton-magnon-phonon transition disappears. Furthermore, prior to the fully polarized ferromagnetic phase above 410 T, we found a novel magnetic phase above 350 T followed by a canted 3:1 phase.

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Atsuhiko Miyata, Hiroaki Ueda, Yutaka Ueda, Hironobu Sawabe, Shojiro Takeyama. 2011-08-09. Magnetic phases of a highly frustrated magnet, ZnCr2O4, up to an ultra-high magnetic field of 600 T. https://doi.org/10.1103/physrevlett.107.207203

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