N. M. Peraca, X. Li, M. Bamba, C. L. Huang, N. Yuan, X. Ma, G. Noe, E. Morosan, S. Cao, J. Kono
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Terahertz Magnon Spectroscopy Mapping of the Low-Temperature Phases of ErxY1-xFeO3
We excited terahertz magnons in ErxY1-xFeO3 as a function of temperature, magnetic field, and yttrium composition (x), providing insight into the role of cooperative Er3+-Fe3+ exchange interactions in the low-temperature phase transition.