Fe group-based amorphous alloy ribbon and magnetic marker

摘要

An Fe group-based amorphous alloy ribbon having a cross section having a width of from 100 to 900 mu m and a thickness of from 8 to 50 mu m and a magnetic hysteresis loop which exhibits a large Barkhausen discontinuity. The amorphous alloy ribbon is suitable for preparing magnetic markers for use in an anti-theft system and an article surveillance system, and as a pulse generator. A magnetic marker formed from the amorphous alloy ribbon is also disclosed.