Coexistence of distinct single-ion and exchange-based mechanisms for blocking of magnetization in a CoII2DyIII2 single-molecule magnet

Mondal, Kartik Chandra, Sundt, Alexander, Lan, Yanhua, Kostakis, George E, Waldmann, Oliver, Ungur, Liviu, Chibotaru, Liviu F, Anson, Christopher E and Powell, Annie K (2012) Coexistence of distinct single-ion and exchange-based mechanisms for blocking of magnetization in a CoII2DyIII2 single-molecule magnet. Angewandte Chemie International Edition, 51 (30). pp. 7550-7554. ISSN 1433-7851

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Abstract

Two ways to relax: A defect-dicubane Co2Dy2 single-molecule magnet (SMM) displays slow relaxation of magnetization with a blocking temperature of 22 K (at 1500 Hz), the highest reported for a 3d–4f-based SMM. Analysis of the relaxation reveals two distinct blocking regimes, one of which is intraionic, localized on the DyIII ions, while the other is exchange-based.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science
Depositing User: Deeptima Massey
Date Deposited: 11 Sep 2013 13:16
Last Modified: 11 Sep 2013 13:16
URI: http://sro.sussex.ac.uk/id/eprint/46128
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