Anomalous dielectric response of short hydrogen bonds under pressure: the case of (Mn,Fe)2+AlPO4(OH)2H2O.

Abstract

An anomalous increase in the real part of dielectric response is observed in Mn0.5Fe0.5AlPO4(OH)2H2O while cooling to ~70 K. This is addressed to field-induced proton dynamics in a short hydrogen bond of 2.480(3) Å. The absence of discontinuities in heat capacity curves above the Néel temperature (T N  ≈  7 K) excludes a paraelectric to antiferroelectric… (More)
DOI: 10.1088/1361-648X/aa7adf

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@article{Rska2017AnomalousDR, title={Anomalous dielectric response of short hydrogen bonds under pressure: the case of (Mn,Fe)2+AlPO4(OH)2H2O.}, author={B R{\"{o}ska and S O Park and Yukihiro Yoshimori and Koichi Kimura and Takashi Kimura}, journal={Journal of physics. Condensed matter : an Institute of Physics journal}, year={2017}, volume={29 36}, pages={365401} }