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Domain Structure and Dynamic Process

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Micromagnetics and Recording Materials

Part of the book series: SpringerBriefs in Applied Sciences and Technology ((BRIEFSAPPLSCIENCES))

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Abstract

This chapter will discuss the micromagnetic simulation of magnetization pattern or domain structures in magnetic devices, both the static domain and dynamic process will be studied. The domain structure is less sensitive to the microstructure compared to the M–H loop; however it is very sensitive to the initial configuration of magnetization and randomness of anisotropy, which strongly reflects the nonlinearity nature of the Landau–Lifshitz equation. The demagnetizing matrices of arbitrary polyhedron cells, as discussed in Chap. 2, will be utilized to study the domain structure in magnetic devices with inclined edges, such as writers in hard disk drives and tips in magnetic force microscope. The limits of cell size in computational micromagnetics will also be discussed.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Tsinghua University Beijing, Shuangqing, 100084, Beijing, China

    Dan Wei

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  1. Dan Wei
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Correspondence to Dan Wei .

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Wei, D. (2012). Domain Structure and Dynamic Process. In: Micromagnetics and Recording Materials. SpringerBriefs in Applied Sciences and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28577-6_4

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