| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated magnetic core in which the core loss is small in a high frequency band and of which the size can be reduced. SOLUTION: Laminated magnetic cores 1, 11, having a magnetic core main body 4 where the thin band 3 of an Fe-based soft magnetic metallic glass alloy is wound into a toroidal or a magnetic core main body 13 which is formed by laminating the thin bands 3, are adopted. The Fe-based soft magnetic metal glass alloy is characterized in that the temperature interval ΔTx of supercooled liquid which is expressed by a formula ΔTx=Tx-Tg (where Tx is the crystallization starting temperature, and Tg is the transition temperature of glass) is at least 20 K, and the resistivity is at least 1.5 μΩm. |
