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Magnetic interactions in the monoclinic ludwigite Cu FeO BO

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Abstract:

The system Cu2FeO2BO3 is an oxyborate belonging to the family of the ludwigites. In this paper we present AC susceptibility, magnetization measurements and Mössbauer spectroscopy on this material which allows for a complete characterization of its complex magnetic behavior. We find an hierarchy of interactions which clearly defines three regimes with decreasing temperature. These are associated with, the freezing of the Fe moments, the antiferromagnetic ordering of the Cu sub-lattice and finally the coupling between both systems.

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Authors and Affiliations

  1. Instituto de Física, Universidade Federal Fluminense, Campus da Praia Vermelha, 24210-340, Niterói, RJ, BR

    M.A. Continentino, J.C. Fernandes & R.B. Guimar aes

  2. Departamento de Física, Pontifícia Universidade Católica do Rio de Janeiro, 22452-970, Rio de Janeiro, RJ, BR

    H.A. Borges

  3. Centre de Recherches sur les Très Basses Temperatures-CNRS, 25 avenue des Martyrs, BP 166, 38042, Cedex 9, Grenoble, France, FR

    A. Sulpice

  4. Laboratoire des Propriétés Électroniques des Solides-CNRS, 25 avenue des Martyrs, BP 166, 38042, Cedex 9, Grenoble, France, FR

    J.-L. Tholence

  5. Instituto de Física, Universidade Federal do Rio Grande do Sul, avenue Bento Gonçalves, 91501-970, Porto Alegre, RS, BR

    J.L. Siqueira, J.B.M. da Cunha & C.A. dos Santos

Authors
  1. M.A. Continentino
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  2. J.C. Fernandes
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  3. R.B. Guimar aes
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  4. H.A. Borges
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  5. A. Sulpice
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  6. J.-L. Tholence
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  7. J.L. Siqueira
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  8. J.B.M. da Cunha
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  9. C.A. dos Santos
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Received 25 September 1998

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Continentino, M., Fernandes, J., aes, R. et al. Magnetic interactions in the monoclinic ludwigite Cu FeO BO . Eur. Phys. J. B 9, 613–618 (1999). https://doi.org/10.1007/s100510050805

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  • DOI: https://doi.org/10.1007/s100510050805

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