Magnetic Anisotropy, Domains, and Walls
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In Sect. 9.1 we shall show that several sources of anisotropy related to the crystal structure introduce energy terms that tend to stabilise the magnetisation along one crystal axis. We can thus understand the existence of magnetic hysteresis, but not the vanishing magnetisation when a material has never been in the presence of a magnetic field. This effect can be attributed to the existence of magnetic dipole interactions between the microscopic moments, which we shall investigate in Sect. 9.2.
KeywordsMagnetic Domain Magnetic Hysteresis Easy Axis Ferromagnetic Material Anisotropy Energy
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