Evidence for resonant magnetic tunneling of rare-earth ions: from insulating to metallic matrix
作者： B. Barbara , R. Giraud , W. Wernsdorfer , D. Mailly , P. Lejay
DOI: 10.1016/J.JMMM.2003.12.654
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摘要: Abstract Tunneling of the total angular momentum Ho 3+ in LiYF 4 (insulating matrix) is demonstrated. Due to strong hyperfine interactions, electronic and nuclear spin tunnel simultaneously (two-body entanglement) due weak dipolar pairs ions also (four-body entanglement). Similar results obtained with a metallic matrix (YRu 2 Si ) prove persistence tunneling presence free carriers.
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