Abstract
AC magnetic susceptibility of La1−x Ca x MnO3 (x = 0.25, 0.33, 04, 0.5) thin films was obtained using Monte Carlo simulations combined with Fourier transform. The material stoichiometry was varied depending on the combination of Mn 4+ and Mn 3+ ions. Hamiltonian used includes the Heisenberg interaction, magnetocrystalline anisotropy, and Zeeman effect. For determining AC susceptibility, a time-dependent external magnetic field h(t) was applied. The study was conducted for various angular frequencies and temperatures. The simulations were obtained using a graphical interface that allowed the online monitoring of the results. According to the results, the AC susceptibility decreases not only with the temperature but also with the frequency.
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The authors gratefully acknowledge the support of the Departamento de Física y Química of La Universidad Nacional de Colombia Sede Manizales.
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Barco-Ríos, H., Restrepo-Parra, E. AC Magnetic Susceptibility of La1−x Ca x MnO 3 (x = 0.25, 0.33, 0.4, 0.5): Monte Carlo Approach. J Supercond Nov Magn 29, 1287–1293 (2016). https://doi.org/10.1007/s10948-016-3370-0
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DOI: https://doi.org/10.1007/s10948-016-3370-0