Zero-field-cooled and field-cooled magnetizations and magnetic susceptibility of itinerant ferromagnet SrRuO3 |
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Authors: | Hou Deng-Lu Jiang En-Yong Bai Hai-Li |
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Affiliation: | Department of Applied Physics, Tianjin University, Tianjin 300072, China; Department of Applied Physics, Tianjin University, Tianjin 300072, China; Department of Physics, Hebei Normal University, Shijiazhuang 050016, China |
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Abstract: | Zero-field-cooled (ZFC) magnetization, field-cooled (FC) magnetization, ac magnetic susceptibility and major hysteresis loops of itinerant ferromagnet SrRuO3 have been measured at magnetic ordering temperatures ranging from 5 to 160 K. An empirical model is proposed to calculate the measured ZFC magnetization. The result indicates that the calculated ZFC magnetization compares well with the measured one. Based on the generalized Preisach model, both the ZFC and FC curves are reproduced by numerical simulations. The critical temperature and critical exponents are determined by measuring the ac magnetic susceptibility in different bias magnetic fields at temperatures in the vicinity of the point of phase transition. |
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Keywords: | zero-field-cooled magnetization field-cooled magnetization magnetic susceptibility hysteresis loop |
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