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Numerical mean field studies of the site disordered spin glassCuMn

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Zeitschrift für Physik B Condensed Matter

Abstract

Numerical mean field studies ofCuMn alloys have been performed for different concentration and external magnetic field strengths in a wide temperature range using a cube with 12*12*12 lattice points and periodic boundary conditions. The calculations include only RKKY interaction based on hyperfine field measurements by Slichter and coworkers. They result in realistic values for the spin glass transition temperturesT f . The temperature was varied from the paramagnetic regime down to the deeply frozen state far belowT f . The exchange and hyperfine field distributions have been calculated. The copper NMR spectra of the main line and the satellites are shown. Moreover, the temperature behavior of the order parameter, the probe magnetization, the magnetic heat capacity and the NMR line width are given.

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Authors and Affiliations

  1. Institut für Metallphysik und Nukleare Festkörperphysik, Technische Universität Braunschweig, Mendelssohnstrasse 3, W-3300, Braunschweig, Federal Republic of Germany

    H. -H. Klauß, C. Tempelmann & H. Brömer

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  1. H. -H. Klauß
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  2. C. Tempelmann
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  3. H. Brömer
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Klauß, H.H., Tempelmann, C. & Brömer, H. Numerical mean field studies of the site disordered spin glassCuMn. Z. Physik B - Condensed Matter 87, 333–340 (1992). https://doi.org/10.1007/BF01309286

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  • DOI: https://doi.org/10.1007/BF01309286

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