The spontaneous magnetization and equilibrium domain of SrFeOunder zero external field by micromagnetic simulation and experimental measurements were investigated.It was found that the magnetic moment distribution was...The spontaneous magnetization and equilibrium domain of SrFeOunder zero external field by micromagnetic simulation and experimental measurements were investigated.It was found that the magnetic moment distribution was extremely sensitive to the grain size of strontium hexaferrite.The critical diameter from single-domain to multi-domain can be controlled by changing the thickness and diameter,which is the key to improve the permanent magnet properties.展开更多
基金supported by Beijing Natural Science Foundation (No.2214070)the National Natural Science Foundation of China (Nos.52001012,52088101,51901057, U1832219,51771223 and 51971240)+6 种基金the Heye Chongming Project (No.HYCMP-2021001)China Postdoctoral Science Foundation (Nos.2019M661275 and 2020T130030ZX)the Natural Science Foundation of Inner Mongolia Autonomous Region (No.2019MS05040)the Key Projects of Capacity Construction of Science and Technology Innovation Service (No.19002020124)Beijing Talent Training Quality Construction Project (No.19008021064)the National Key Research and Development Program of China (Nos. 2021YFB3501202,2020YFA0711502,2019YFA0704900, 2018YFA0305704 and 2017YFA0303601)the Strategic Priority Research Program B (No.XDB33030200)。
文摘The spontaneous magnetization and equilibrium domain of SrFeOunder zero external field by micromagnetic simulation and experimental measurements were investigated.It was found that the magnetic moment distribution was extremely sensitive to the grain size of strontium hexaferrite.The critical diameter from single-domain to multi-domain can be controlled by changing the thickness and diameter,which is the key to improve the permanent magnet properties.
