Title :
Temperature dependence of static and dynamic magnetic properties of AF-biased CoFe films
Author :
Lamy, Y. ; Viala, B.
Author_Institution :
CEA-DRT-LETI, Grenoble, France
Abstract :
In this work, we investigate in details the temperature dependence of static and dynamic magnetic properties in three types of AF/F/AF multilayers consisting of NiMn as AF-layer and Co90Fe10, Co50Fe50 and Co35Fe65 as F-layer, respectively. The static magnetic properties have been investigated in the temperature range of 20°C-400°C by means of vibrating sample magnetometer (VSM). The microwave permeability of these layers has been measured up to 300°C with a permeameter using the heating capability. To allow a full dynamic characterization (up to 6 GHz) including the ferromagnetic resonance the thickness of the F-layers have been setup at 700 Å which lead to a theoretical 4 GHz resonance frequency.
Keywords :
cobalt alloys; ferromagnetic resonance; iron alloys; magnetic multilayers; magnetometers; manganese alloys; nickel alloys; permeability; thin films; 20 to 400 degC; AF-F-AF multilayers; NiMn-Co35Fe65-NiMn; NiMn-Co50Fe50-NiMn; NiMn-Co90Fe10-NiMn; dynamic magnetic properties; ferromagnetic resonance; heating capability; microwave permeability; resonance frequency; static magnetic properties; temperature dependence; vibrating sample magnetometer; Electromagnetic heating; Iron; Magnetic films; Magnetic multilayers; Magnetic properties; Magnetometers; Microwave measurements; Permeability; Temperature dependence; Temperature distribution;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464470
