Title :
Tailoring the Switching Field Dependence on External Parameters in Magnetic Microwires
Author :
Varga, R. ; Gamcova, J. ; Klein, P. ; Kovac, J. ; Zhukov, A.
Author_Institution :
Inst. of Phys., UPJS, Kosice, Slovakia
Abstract :
We have studied the effect of thermal treatment on the sensitivity and stability of the switching field in bistable glass-coated Fe-Ni-Si-B microwire. We have found that annealing at 300°C/1 hour leads to the increase in the sensitivity of the switching field to the applied external stress. Moreover, the switching field fluctuation decreases after such treatment as a result of domain structure stabilization through the structural relaxation.
Keywords :
annealing; fluctuations; glass; magnetic anisotropy; magnetic domains; magnetoelastic effects; micromechanical devices; wires (electric); FeNiSiB-SiO2; annealing; applied external stress; bistable glass-coated Fe-Ni-Si-B microwire; domain structure stabilization; external parameters; magnetic microwires; structural relaxation; switching field dependence; switching field fluctuation; switching field sensitivity; switching field stability; temperature 300 degC; thermal treatment effect; time 1 h; Amorphous magnetic materials; Annealing; Magnetic domains; Stress; Switches; Temperature dependence; Temperature measurement; Magnetic microwires; magnetoelastic anisotropy; structural relaxation; switching field;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2218224
