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Partial ordered homogeneous magnetic moments in the Hubbard-model

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Zeitschrift für Physik B Condensed Matter

Abstract

In this contribution, we study the behaviour of magnetically disordered electron systems. In a model with localized magnetic fields at the atomic sites, a CPA-like method, which has regard for the vector character of the fields, is used to examine the case where the localized fields, which correspond to atomic magnetic moments, are distributed statistically. In an example for a non-isotropic distribution of the fields, we construct a system state with partial homogeneous order of the localized fields (or moments). The ordering behaviour of the system and the comparison of the new magnetic state with pure magnetic and non-magnetic band states and with the non-magnetic state of (isotropic) stochastic distribution of the localized fields is discussed. With this paper we are able to introduce typical properties of localized models into a band model.

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Authors and Affiliations

  1. Institut für Physik, Universität Dortmund, Baroper Straße, D-4600, Dortmund, Federal Republic of Germany

    W. Groß & U. Brandt

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  1. W. Groß
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  2. U. Brandt
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Work supported in part by the Deutsche Forschungsgemeinschaft

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Groß, W., Brandt, U. Partial ordered homogeneous magnetic moments in the Hubbard-model. Z Physik B 24, 129–134 (1976). https://doi.org/10.1007/BF01312881

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  • DOI: https://doi.org/10.1007/BF01312881

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