The Experts below are selected from a list of 21 Experts worldwide ranked by ideXlab platform
Anas M. Ayoub Ababneh - One of the best experts on this subject based on the ideXlab platform.
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A statistical model for Magnetic Fine Particle systems
1996Co-Authors: Anas M. Ayoub AbabnehAbstract:A statistical model for Magnetic Fine Particle systems، للحصول على النص الكامل يرجى زيارة مكتبة الحسين بن طلال في جامعة اليرموك او زيارة موقعها الالكتروني
Roy Chantrell - One of the best experts on this subject based on the ideXlab platform.
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First order reversal curves and intrinsic parameter determination for Magnetic materials; limitations of hysteron-based approaches in correlated systems
Scientific Reports, 2017Co-Authors: Sergiu Ruta, Ondrej Hovorka, Pin-wei Huang, Kangkang Wang, Ganping Ju, Roy ChantrellAbstract:The generic problem of extracting information on intrinsic Particle properties from the whole class of interacting Magnetic Fine Particle systems is a long standing and difficult inverse problem. As an example, the Switching Field Distribution (SFD) is an important quantity in the characterization of Magnetic systems, and its determination in many technological applications, such as recording media, is especially challenging. Techniques such as the first order reversal curve (FORC) methods, were developed to extract the SFD from macroscopic measurements. However, all methods rely on separating the contributions to the measurements of the intrinsic SFD and the extrinsic effects of magnetostatic and exchange interactions. We investigate the underlying physics of the FORC method by applying it to the output predictions of a kinetic Monte-Carlo model with known input parameters. We show that the FORC method is valid only in cases of weak spatial correlation of the magnetisation and suggest a more general approach.
H. Fukushima - One of the best experts on this subject based on the ideXlab platform.
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Effect of thermal fluctuation on reversal field of Magnetic Fine Particle with surface anistropy
2000 IEEE International Magnetics Conference (INTERMAG), 2000Co-Authors: Y. Nakatani, N. Hayashi, Y. Uesaka, H. FukushimaAbstract:Summary form only given. The complete presentation was not made available for publication as part of the conference proceedings.
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Effect of thermal fluctuation on reversal field of Magnetic Fine Particle with surface anisotropy
IEEE Transactions on Magnetics, 2000Co-Authors: Y. Nakatani, N. Hayashi, Y. Uesaka, H. Fukushima, O. Kitakami, Y. ShimadaAbstract:The magnetization reversal of a nanometer size ferroMagnetic Particle with surface anisotropy is investigated by microMagnetic computer simulation. Two kinds of calculations were performed: calculations with and without thermal fluctuation. In the case without thermal fluctuation a surface anisotropy of several ergs/cm/sup 2/ was found to increase the magnetization reversal field of the Particle by a factor of ten as compared with the case without surface anisotropy. The introduction of surface anisotropy was also found to increase the reversal field, and hence, improve thermal stability.
Y. Nakatani - One of the best experts on this subject based on the ideXlab platform.
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Effect of thermal fluctuation on reversal field of Magnetic Fine Particle with surface anistropy
2000 IEEE International Magnetics Conference (INTERMAG), 2000Co-Authors: Y. Nakatani, N. Hayashi, Y. Uesaka, H. FukushimaAbstract:Summary form only given. The complete presentation was not made available for publication as part of the conference proceedings.
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Effect of thermal fluctuation on reversal field of Magnetic Fine Particle with surface anisotropy
IEEE Transactions on Magnetics, 2000Co-Authors: Y. Nakatani, N. Hayashi, Y. Uesaka, H. Fukushima, O. Kitakami, Y. ShimadaAbstract:The magnetization reversal of a nanometer size ferroMagnetic Particle with surface anisotropy is investigated by microMagnetic computer simulation. Two kinds of calculations were performed: calculations with and without thermal fluctuation. In the case without thermal fluctuation a surface anisotropy of several ergs/cm/sup 2/ was found to increase the magnetization reversal field of the Particle by a factor of ten as compared with the case without surface anisotropy. The introduction of surface anisotropy was also found to increase the reversal field, and hence, improve thermal stability.
Sergiu Ruta - One of the best experts on this subject based on the ideXlab platform.
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First order reversal curves and intrinsic parameter determination for Magnetic materials; limitations of hysteron-based approaches in correlated systems
Scientific Reports, 2017Co-Authors: Sergiu Ruta, Ondrej Hovorka, Pin-wei Huang, Kangkang Wang, Ganping Ju, Roy ChantrellAbstract:The generic problem of extracting information on intrinsic Particle properties from the whole class of interacting Magnetic Fine Particle systems is a long standing and difficult inverse problem. As an example, the Switching Field Distribution (SFD) is an important quantity in the characterization of Magnetic systems, and its determination in many technological applications, such as recording media, is especially challenging. Techniques such as the first order reversal curve (FORC) methods, were developed to extract the SFD from macroscopic measurements. However, all methods rely on separating the contributions to the measurements of the intrinsic SFD and the extrinsic effects of magnetostatic and exchange interactions. We investigate the underlying physics of the FORC method by applying it to the output predictions of a kinetic Monte-Carlo model with known input parameters. We show that the FORC method is valid only in cases of weak spatial correlation of the magnetisation and suggest a more general approach.
