Magnetic phase diagram of ErNi2B2C

A. Jensen, K.N. Toft, A.B. Abrahamsen, N.H. Andersen, J. Jensen, P. Hedegård, J. Klenke, K. Prokes, P. Smeibidl, S. Danilkin, V. Sikolenko, M.R. Eskildsen, P.C. Canfield

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    Abstract

    The magnetic phase diagram of the superconductor ErNi2B2C (T-c = 11 K and T-N = 6 K) has been studied by neutron diffraction as a function of temperature and magnetic field applied along the symmetry directions [010], [110] and [001] of the tetragonal crystal structure. A series of commensurate magnetic structures, consistent with a transversely polarized spin-density wave with modulation vectors Q = n/ma* (0.55 less than or equal to n/m < 0.60) and the spins along b*, have been observed. The experimental data are compared with the results of a mean-field model that has been established from an analysis of bulk magnetization and zero-field neutron diffraction data. The model accounts for most of the observed features but fails to explain the occurrence of a small component Qdelta approximate to -0.005b* observed close to H-c2 when the field is applied along [110]. (C) 2004 Elsevier B.V. All rights reserved.
    Original languageEnglish
    JournalPhysica C: Superconductivity and its Applications
    Volume408-410
    Pages (from-to)97-99
    ISSN0921-4534
    DOIs
    Publication statusPublished - 2004
    Event7th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors - Rio de Janeiro, Brazil
    Duration: 25 May 200330 May 2003
    Conference number: 7
    http://www.cbpf.br/m2srio/m2srio/m2srio.htm

    Conference

    Conference7th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors
    Number7
    CountryBrazil
    CityRio de Janeiro
    Period25/05/200330/05/2003
    Internet address

    Cite this

    Jensen, A., Toft, K. N., Abrahamsen, A. B., Andersen, N. H., Jensen, J., Hedegård, P., Klenke, J., Prokes, K., Smeibidl, P., Danilkin, S., Sikolenko, V., Eskildsen, M. R., & Canfield, P. C. (2004). Magnetic phase diagram of ErNi2B2C. Physica C: Superconductivity and its Applications, 408-410, 97-99. https://doi.org/10.1016/j.physc.2004.02.169