Prediction method of basic domain structure in Fe3%Si(110) single crystal with grooved surface

摘要: This paper proposes the method to accurately predict 180° basic domain width (Dw) in demagnetized states of grooved Fe3%Si(110) single crystal with tilt angle [001] out sheet surface (β). The evaluation Dw enables estimation anomalous eddy current losses. In this paper, is optimized minimize magnetic Gibbs free energy represented by vector potentials using finite element and conjugate gradient method. μ*-method adopted approximate magnetization relaxation. stray field generated charges occurring on both grooves cross section surfaces considered our proposed validity was confirmed comparison observed Dw. As a result, we could reveal β dependence against groove depth. Moreover, theoretical threshold refinement due has been suggested.