Single-crystal EPR spectroscopy of a Co(II) single-chain magnet

    Authors

    A. Amjad; G. M. Espallargas; J. Liu; J. M. Clemente-Juan; E. Coronado; S. Hill;E. del Barco

    Comments

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    Abbreviated Journal Title

    Polyhedron

    Keywords

    EPR; Single chain magnets; Cobalt; BEHAVIOR; Chemistry, Inorganic & Nuclear; Crystallography

    Abstract

    An electron paramagnetic resonance (EPR) study of a single crystal of Co-II-based single-chain magnets (SCM) is presented. Discrete resonant absorptions are associated to the presence of magnetic domains within the chains of finite lengths determined by a competition between intra-chain exchange interactions and thermally excited single spin fluctuations. The results are interpreted as a transition from single spin dynamics at high temperature (T similar to 20 K), associated to the Kramers doublet ground state of the individual Con ions, to archetypical SCM dynamics at low temperatures, where intra-chain correlations form long magnetic domains, whose average length is imposed by the concentration of defects in the sample. (C) 2013 Elsevier Ltd. All rights reserved.

    Journal Title

    Polyhedron

    Volume

    66

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    218

    Last Page

    221

    WOS Identifier

    WOS:000327685100036

    ISSN

    0277-5387

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