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arXiv · 1605.06209

Rewritable Artificial Magnetic Charge Ice

Yong-Lei Wang·Zhi-Li Xiao·Alexey Snezhko·Jing Xu·Leonidas E. Ocola·Ralu Divan·John E. Pearson·George W. Crabtree·Wai-Kwong Kwok
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Abstract

Artificial ices enable the study of geometrical frustration by design and through direct observation. However, it has proven difficult to achieve tailored long-range ordering of their diverse configurations, limiting both fundamental and applied research directions. We designed an artificial spin structure that produces a magnetic charge ice with tunable long-range ordering of eight different configurations. We also developed a technique to precisely manipulate the local magnetic charge states and demonstrate write-read-erase multifunctionality at room temperature. This globally reconfigurable and locally writable magnetic charge ice could provide a setting for designing magnetic monopole defects, tailoring magnonics, and controlling the properties of other two-dimensional materials.

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Yong-Lei Wang, Zhi-Li Xiao, Alexey Snezhko, Jing Xu, Leonidas E. Ocola, Ralu Divan, John E. Pearson, George W. Crabtree, Wai-Kwong Kwok. 2016-05-20. Rewritable Artificial Magnetic Charge Ice. https://doi.org/10.1126/science.aad8037

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