journal article·2004-05

Evidence for resonant magnetic tunneling of rare-earth ions: from insulating to metallic matrix

B. Barbara, R. Giraud, W. Wernsdorfer, D. Mailly, P. Lejay, A. Tkachuk, H. Suzuki

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Abstract

Abstract Tunneling of the total angular momentum of Ho 3+ in LiYF 4 (insulating matrix) is demonstrated. Due to strong hyperfine interactions, electronic angular momentum and nuclear spin tunnel simultaneously (two-body entanglement) and due to weak dipolar interactions, pairs of Ho 3+ ions also tunnel simultaneously (four-body entanglement). Similar results obtained with a metallic matrix (YRu 2 Si 2 ) prove the persistence of tunneling in the presence of free carriers.
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Research context

OpenAlex topics: Magnetism in coordination complexes · Lanthanide and Transition Metal Complexes · Advanced NMR Techniques and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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