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Correlated spin glass generated by structural disorder in the amorphous Dy6Fe74B20 alloy Tejada Palacios, Javier Martínez Benjamin, Joan Josep Labarta, Amílcar Chudnovsky, Eugene M., 1948- Materials magnètics Substàncies amorfes Vidres de spin Magnetic materials Amorphous substances Spin glasses Magnetic properties of the amorphous Dy-Fe-B alloy are studied in terms of the correlated-spin-glass approach of Chudnovsky et al.$-— Features predicted by the theory are clearly observed in the experiment. It is shown that the magnetization law may be presented in the form where it is determined by the dimensionless correlation function of structural disorder, C(y), only. The analysis of the magnetization curve allows one to distinguish between different models of disorder in amorphous solids. Experimental data on Dy-Fe-B are in favor of C=exp(-1/2 y 2 ). 2009-10-20T11:13:01Z 2009-10-20T11:13:01Z 1991 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0163-1829 https://hdl.handle.net/2445/9740 14484 eng Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.44.7698 Physical Review B, 1991, vol. 44, núm. 14, p. 7698-7700. http://dx.doi.org/10.1103/PhysRevB.44.7698 (c) The American Physical Society, 1991 info:eu-repo/semantics/openAccess 3 p. application/pdf The American Physical Society Articles publicats en revistes (Física de la Matèria Condensada)