In Situ Reversible Ionic Control for Nonvolatile Magnetic Phases in a Donor/Acceptor Metal‐Organic Framework |
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Authors: | Kouji Taniguchi Keisuke Narushima Hajime Sagayama Wataru Kosaka Nanami Shito Hitoshi Miyasaka |
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Affiliation: | 1. Institute for Materials Research (IMR), Tohoku University, Aoba‐ku, Sendai, Japan;2. Department of Chemistry, Graduate School of Science, Tohoku University, Aoba‐ku, Sendai, Japan;3. Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Nishikyo‐ku, Kyoto, Japan;4. Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, Japan |
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Abstract: | Reversible magnetic control by electrical means, which is highly desired from the viewpoint of fundamentals and technological applications such as data storage devices, has been a challenging topic. In this study, the authors demonstrate in situ magnetic phase switching between the ferrimagnetic and paramagnetic states of an electron‐donor/‐acceptor metal‐organic framework (D/A‐MOF) using band‐filling control mediated by the Li+‐ion migration that accompanies redox reactions, i.e., “magneto‐ionic control”. By taking advantage of the rechargeability of lithium‐ion battery systems, in which Li+‐ions and electrons are simultaneously inserted into/extracted from a cathode material, the reversible control of nonvolatile magnetic phases in a D/A‐MOF has been achieved. This result demonstrates that the combination of a redox‐active MOF with porous flexibility and ion‐migration capability enables the creation of new pathways toward magneto‐electric coupling devices in the field of ionics. |
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Keywords: | lithium ion batteries magnetism magneto‐ionics metal organic frameworks phase switching |
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