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Preisach modeling on the magnetic properties of Sr 1− x Ca x RuO 3
Author(s) -
Hou DengLu,
Xu Jing,
Bai Yun,
Zhao Jing,
Du GuoQiang,
Tang GuiDe,
Nie XiangFu
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200302031
Subject(s) - preisach model of hysteresis , hysteresis , magnetic hysteresis , condensed matter physics , thermodynamics , magnetic field , materials science , thermal , field (mathematics) , thermal hysteresis , statistical physics , physics , magnetization , mathematics , phase transition , quantum mechanics , pure mathematics
The samples Sr 1− x Ca x RuO 3 ( x = 0.0, 0.2, 0.6) have been synthesized by a solid state reaction, and characterized by the zero field cooled (ZFC), field cooled (FC) magnetic moments and the major hysteresis loops. The data have been analyzed within the framework of a generalized Preisach model, which includes thermal fluctuations, critical phenomenon, and temperature dependent distribution of free energy barriers. The model provides an excellent description of the experimental data, and the simulating results are in good agreement with the experiment results. All the ZFC/FC curves at different applied fields and all the major hysteresis loops at different temperatures can be replicated by the model with one set of parameters. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)