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Real-space renormalization group investigation of the three-dimensional semi-infinite mixed spin ising model

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Zeitschrift für Physik B Condensed Matter

Abstract

Within a real-space renormalization group framework we study the three-dimensional semi-infinite mixed spin Ising model (spins σ=1/2 andS=1). The bilinear (K s ) and the biquadratic (L S ) interactions on the surface might be different from the bulk onesK B andL B . The parameter space is four dimensional. We find 26 fixed points describing a large variety of critical behaviour. The effect ofL B andL S on the surface transition is investigated.

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Author notes

  1. N. Benayad

    Present address: Faculté des Sciences I, Univérsité Hassan II, Casablanca, Morocco

Authors and Affiliations

  1. Institut für Theoretische Physik, Universität zu Köln, D-5000, Köln 41, Federal Republic of Germany

    N. Benayad & J. Zittartz

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  1. N. Benayad
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  2. J. Zittartz
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Supported by the agreement of cooperation between the DFGW. Germany and the CNR-Maroc

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Benayad, N., Zittartz, J. Real-space renormalization group investigation of the three-dimensional semi-infinite mixed spin ising model. Z. Physik B - Condensed Matter 81, 107–112 (1990). https://doi.org/10.1007/BF01454221

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  • DOI: https://doi.org/10.1007/BF01454221

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