The rare-earth titanate perovskites exhibit a rich interplay among spin, orbital and structural degrees of freedom. Here, electron spin resonance and nuclear magnetic resonance are combined to study the low-energy spin properties of a series of rare-earth titanates. The measurements reveal slow spin fluctuations at temperatures far above the ferromagnetic transition, as well as a low-lying electronic excited state that likely plays a pivotal role in the formation of magnetic order.
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Najev et al. (2024) studied this question.
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