Title :
Magnetic Properties of Glass-Coated Amorphous and Nanocrystalline FeMoBCu Microwires
Author :
Klein, Peter ; Varga, Rastislav ; Skorvanek, Ivan ; El Kammouni, Rhimou ; Vazquez, Manuel
Author_Institution :
Inst. of Phys., Pavol Jozef Safarik Univ., Kosice, Slovakia
Abstract :
We have studied temperature dependence of the switching field in bistable amorphous and nanocrystalline FeMoBCu microwires with low Curie temperature. Using a low Curie temperature of amorphous matrix, a huge variation of the switching field (over 400%) in a quite narrow temperature range (20 °C-150 °C) has been obtained. Such a variation is attributed to superparamagnetic behavior of separated crystalline grains in the early stage of nanocrystallization.
Keywords :
Curie temperature; amorphous magnetic materials; boron compounds; copper alloys; crystallisation; glass; iron alloys; magnetic domain walls; magnetic switching; micromagnetics; molybdenum alloys; nanomagnetics; superparamagnetism; Curie temperature; FeMoBCu-SiO2; amorphous matrix; bistable amorphous microwires; glass-coated amorphous FeMoBCu microwires; magnetic properties; nanocrystalline FeMoBCu microwires; nanocrystallization; separated crystalline grains; superparamagnetic behavior; switching field; temperature 20 degC to 150 degC; temperature dependence; Amorphous magnetic materials; Annealing; Magnetic domains; Magnetomechanical effects; Switches; Temperature dependence; Temperature measurement; Domain wall; magnetic microwires; nanocrystalline materials; superparamagnetism; switching field;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2323483
