Title :
Magnetoelastic thin films for high-frequency applications
Author :
Ludwig, Alfred ; Löhndorf, Markus ; Tewes, Michael ; Quandt, Eckhard
Author_Institution :
Center of Adv. Eur. Studies & Res., Bonn, Germany
fDate :
7/1/2001 12:00:00 AM
Abstract :
High-frequency magnetic thin films with cut-off frequencies well above 2 GHz and good magnetoelastic properties are key materials for the development of new magnetic devices such as remote-interrogated magnetoelastic sensors or micro-inductors. In order to achieve high cut-off frequencies the films must have high magnetization, high anisotropy field, moderate permeability and resistivity. Therefore, multilayered thin films consisting of the transition metal alloy Fe60Co60 and the amorphous soft magnetic alloy Co 80B20 have been developed which show cut-off frequencies higher than 2 GHz combined with good magnetoelastic properties
Keywords :
boron alloys; cobalt alloys; electrical resistivity; iron alloys; magnetic anisotropy; magnetic multilayers; magnetic permeability; magnetic thin films; magnetisation; magnetoelastic effects; 2 GHz; Fe60Co60-Co80B20; Fe60Co60-Co80B20 multilayer; amorphous soft magnetic alloy; cut-off frequency; electrical resistivity; high-frequency magnetic device; magnetic anisotropy; magnetic permeability; magnetization; magnetoelastic thin film; micro-inductor; remote-interrogated magnetoelastic sensor; transition metal alloy; Amorphous magnetic materials; Cutoff frequency; Magnetic anisotropy; Magnetic devices; Magnetic films; Magnetic materials; Magnetic properties; Perpendicular magnetic anisotropy; Soft magnetic materials; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
