| 摘要 |
A magnetic thin film is disclosed which has a composition represented substantially by the following chemical formula and, at the same time, has the whole or part of the thin film formed of an amorphous region: ä(Fe1-xCox)1-y(B1-zXz)yü1-aREa wherein X represents at least one element selected from among the Group 4B elements in the CAS version of the Periodic Table, RE represents rare earth elements including Sm, and x, y, z, and a represent numerical values satisfying the following expressions, 0 < x < 1, 0 < z < 1, 0.05 < y < 0.36, and 0 < a ≤ 0.1. Such films have desirable magnetic properties and can be incorporated in such thin film magnetic elements as planar inductors and magnetic heads. |
