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arXiv · 2308.15335

Switching of ferrotoroidal domains via an intermediate mixed state in the multiferroic Y-type hexaferrite Ba$_{0.5}$Sr$_{1.5}$Mg$_2$Fe$_{12}$O$_{22}$

Jiahao Chen·Francis Chmiel·Jieyi Liu·Dharmalingam Prabhakaran·Paolo G. Radaelli·Roger D. Johnson
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Abstract

We report a detailed study of the magnetic field switching of ferrotoroidal/multiferroic domains in the Y-type hexaferrite compound Ba$_{0.5}$Sr$_{1.5}$Mg$_2$Fe$_{12}$O$_{22}$. By combining data from SQUID magnetometry, magneto-current measurements, and resonant X-ray scattering experiments, we arrive at a complete description of the deterministic switching, which involves the formation of a temperature-dependent mixed state in low magnetic fields. This mechanism is likely to be shared by other members of the hexaferrite family, and presents a challenge for the development of high-speed read-write memory devices based on these materials.

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Jiahao Chen, Francis Chmiel, Jieyi Liu, Dharmalingam Prabhakaran, Paolo G. Radaelli, Roger D. Johnson. 2023-08-29. Switching of ferrotoroidal domains via an intermediate mixed state in the multiferroic Y-type hexaferrite Ba$_{0.5}$Sr$_{1.5}$Mg$_2$Fe$_{12}$O$_{22}$. https://arxiv.org/abs/2308.15335

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