Abstract
We analyze in this study our experimental data for the magnetization (M) as a function of the magnetic field (H) at various constant temperatures for the multilayer structure of La 0.6Nd 0.4Mn 2Si 2 close to the ferromagnetic-antiferromagnetic transitions. This analysis is performed at the transition temperatures (T c) for the M vs. H– H c (H c is the critical field) according to a power-law formula above and below H c, and the values of the critical isotherm δ are deduced for La 0.6Nd 0.4Mn 2Si 2. We also calculate the magnetic field (H– H c) dependence of the isothermal susceptibility χ T at constant temperatures above and below H c, and we obtain the critical behaviour of χ T for this multilayer structure. Our δ values indicate that the ferromagnetic–antiferromagnetic transition in La 0.6Nd 0.4Mn 2Si 2 changes its character from a first order (discontinuous) toward a second-order (continuous) one as the constant temperature changes.
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Yurtseven, H., Doğan, E.K., Emre, B. et al. Analysis of the Magnetization as a Function of the Magnetic Field at the Transition Temperature for La0.6Nd0.4Mn2Si2 . J Supercond Nov Magn 28, 873–876 (2015). https://doi.org/10.1007/s10948-014-2697-7
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DOI: https://doi.org/10.1007/s10948-014-2697-7