Ultrahard magnetism from mixed-valence dilanthanide complexes with metal-metal bonding

Magnetic effects of lanthanide bonding Lanthanide coordination compounds have attracted attention for their persistent magnetic properties near liquid nitrogen temperature, well above alternative molecular magnets. Gould . report that introducing metal-metal bonding can enhance coercivity. Reduction...

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Published in:Science (American Association for the Advancement of Science) Vol. 375; no. 6577; p. 198
Main Authors: Gould, Colin A, McClain, K Randall, Reta, Daniel, Kragskow, Jon G C, Marchiori, David A, Lachman, Ella, Choi, Eun-Sang, Analytis, James G, Britt, R David, Chilton, Nicholas F, Harvey, Benjamin G, Long, Jeffrey R
Format: Journal Article
Language:English
Published: United States 14.01.2022
ISSN:1095-9203, 1095-9203
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Summary:Magnetic effects of lanthanide bonding Lanthanide coordination compounds have attracted attention for their persistent magnetic properties near liquid nitrogen temperature, well above alternative molecular magnets. Gould . report that introducing metal-metal bonding can enhance coercivity. Reduction of iodide-bridged terbium or dysprosium dimers resulted in a single electron bond between the metals, which enforced alignment of the other valence electrons. The resultant coercive fields exceeded 14 tesla below 50 and 60 kelvin for the terbium and dysprosium compounds, respectively. —JSY
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ISSN:1095-9203
1095-9203
DOI:10.1126/science.abl5470