Abstract
A study of the physical properties of spin glass systems (SG) is carried out within the Monte Carlo technique. The studied systems are the “classic” CuMn and AuFe metallic alloys, where the RKKY interaction is used as a model for the interaction among the magnetic (Mn, Fe) atoms. A careful discussion about the approach to the equilibrium is addressed. By introducing a cutoff radius in the range on the spin-spin interaction, the results show the influence of this range on the spin-glass behavior of the alloys, where the SG behavior is only observed when the full (long range) RKKY is taken into account, specially for low concentrations x < 0.05.
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Acknowledgments
The authors acknowledge the Brazilian funding agencies FAPERJ and CNPq. A. S. Martins acknowledges particularly the agency FAPERJ the financial support through grant E-26/110.318/2014. We thank Dale M. Crouse for the reading of the Manuscript and suggestions for improving it. MF de Campos thanks FAPERJ and CNPq.
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da Silva, A.F., Martins, A.S., de Campos, M.F. et al. Revisiting Spin Glasses: Impact of Spin-Spin Interaction Range. Braz J Phys 48, 39–45 (2018). https://doi.org/10.1007/s13538-017-0547-3
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DOI: https://doi.org/10.1007/s13538-017-0547-3