Soft magnetic properties of Fe(Cu,Nb)SiB alloys evidenced by Mossbauer experiments in radio frequency magnetic fields

Conventional (transmission) Mossbauer effect investigations on alloys exhib iting a nanostructure deliver valuable information about the alloys' micros tructure. The application of a radio frequency (rf) magnetic field parallel to the absorber plain causes the Mossbauer effect to become a very sensiti ve tool for detecting soft magnetic properties. These features are clue to two effects, the appearing of sidebands ill the spectra and the collapse of the spectrum. We demonstrate the abilities of this measurement method comp aring well-known results about coercivity with the information content of t he Mossbauer spectra collected at different compositions of the Fe(Cu,Nb)Si B alloys. (C) 1999 Acta Metallurgica Inc.