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Hyperfine-Interaction-Driven Suppression of Quantum Tunneling at Zero Field in a Holmium(III) Single-Ion Magnet

Hyperfine-Interaction-Driven Suppression of Quantum Tunneling at Zero Field in a Holmium(III) Single-Ion Magnet

Yan-Cong Chen, Jun-Liang Liu, Wolfgang Wernsdorfer, Dan Liu, Liviu F Chibotaru, Xiao-Ming Chen, Ming-Liang Tong

Angew Chem Int Ed Engl. 2017 Apr 24;56(18):4996-5000.

PMID: 28295930

Abstract:

An extremely rare non-Kramers holmium(III) single-ion magnet (SIM) is reported to be stabilized in the pentagonal-bipyramidal geometry by a phosphine oxide with a high energy barrier of 237(4) cm-1 . The suppression of the quantum tunneling of magnetization (QTM) at zero field and the hyperfine structures originating from field-induced QTMs can be observed even from the field-dependent alternating-current magnetic susceptibility in addition to single-crystal hysteresis loops. These dramatic dynamics were attributed to the combination of the favorable crystal-field environment and the hyperfine interactions arising from 165 Ho (I=7/2) with a natural abundance of 100 %.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12055628-A	Holmium(III) oxide		12055-62-8	Price

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