Magnetic behavior of a nonextensive S-spin system: Possible connections to manganites

abstract

We analyzed the magnetic behavior of a S-spin system within the framework of Tsallis nonextensive statistics, employing the normalized approach. Unusual properties on magnetization, entropy, and susceptibility emerge as a consequence of the nonextensivity. We further show that the nonextensive approach can be relevant to the field of manganites, materials which exhibit long-range interactions and fractality, two basic ingredients for nonextensivity. Our results are in qualitative agreement with experimental data in La0.67Ca0.33MnO3 and Pr0.5Ca0.5Mn0.95Ga0.05O3 manganites.

keywords

FULLY-DEVELOPED TURBULENCE; TIME-DEPENDENT SOLUTIONS; ANOMALOUS DIFFUSION; TSALLIS STATISTICS; THERMOSTATISTICS; EQUATION; MECHANICS; CLUSTERS; ENTROPY

subject category

Physics

authors

Reis, MS; Araujo, JP; Amaral, VS; Lenzi, EK; Oliveira, IS

our authors

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