Investigation on Domain Pinning Mechanism in Nanometer Hard Magnetic Materials
Keyword(s):
The domain pinning mechanism was investigated in nanometer hard magnetic materials. The pinning fields of domain wall at different inhomogeneities were studied respectively. And exchange-coupling coefficient αex was investigated too. The results showed that αex is proportional to the ratio of inhomogeneity thickness ro to wall width δm for narrow inhomogeneity, while it decreases with enhancement of ro/δm for extended inhomogeneity. At a certain value of ro, exchange-coupling coefficient and pinning fields will reach the maximum. Exchange-coupling interaction and pinning fields are greatly influenced by inhomogeneity. Control range of inhomogeneity may obtain higher coercivity.
Effect of exchange-coupling interaction on domain pinning mechanism in nanometer permanent materials
2011 ◽
Vol 509
(21)
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pp. 6139-6141
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Size-Dependence of Effective Anisotropy and Coercivity in Nanocomposite Permanent Magnetic Materials
2011 ◽
Vol 217-218
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pp. 1689-1692
Exchange-coupling interaction, effective anisotropy and magnetic property of nano-magnetic materials
2007 ◽
Vol 17
(2)
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pp. 131-137
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2019 ◽
Vol 11
(29)
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pp. 26222-26227
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Keyword(s):
2016 ◽
Vol 417
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pp. 355-358
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2007 ◽
Vol 141
(3)
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pp. 156-159
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