| Anomalous Hysteresis Behavior in a Cobalt Fewrrite Ferrofluid |
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| 作者姓名： | ShaukatS.F. DONGYa－ming |
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| 作者单位： | PhysicsDepartment,EastChinaUniversityofScienceandTechnology,Shanghai200237,China |
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| 摘 要： | The magnetization of cobalt ferrite ferrofluid has been studied at low temperature in the presence of the carrier fluid.A prominent difference between slow and fast cooled.samples was observed.In particular the slow cooled samples display an anoamlous increses in magnetization on field reversal.The data is analyzed in terms of the possibilites of both cotherent and incoherent spin rotations.
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| 关 键 词： | CoFe2O4 铁磁流体 反常磁滞 电性质 |
| 收稿时间： | 19 June 2000 |
Anomalous hysteresis behavior in a cobalt ferrite ferrofluid |
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| S. F. Shaukat,Ya-ming Dong Ph. D.,R. Farooq.Anomalous Hysteresis Behavior in a Cobalt Fewrrite Ferrofluid[J].Journal of Shanghai University(English Edition),2001,5(2):107-110. |
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| Authors: | S F Shaukat Ya-ming Dong Ph D R Farooq |
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| Institution: | Department, East China University of Science and Technology, |
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| Abstract: | The magnetization of cobalt ferrite ferrofluid has been studied at low temperatures in the presence of the carrier fluid. A prominent difference between slow and fast cooled samples was observed. In particular the slow cooled samples display an anomalous increase in magnetization on field reversal. The data is analyzed in terms of the possibilities of both coherent and incoherent spin rotations. |
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| Keywords: | hysteresis superparamagnetic relaxation |
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