LOW-MAGNETOSTRICTION CO-P LAYERS WITH MIXED CRYSTALLINE-AMORPHOUS STRUCTURE PREPARED BY ELECTROCHEMICAL DEPOSITION

A Co-P alloy having a mixed amorphous/crystalline structure was produc ed by electrochemical deposition. X-ray spectra, differential scanning calorimetry and scanning electron microscopy were performed in order to obtain the structural characterization. A comparison of the new kin d of material with known amorphous and crystalline alloys was also mad e on the basis of initial magnetization curves, electrical resistivity and standing magnetoelastic wave amplitudes. Differential scanning ca lorimetry reveals that the amorphous component in the mixed structure sample does not include one of the two disordered phases that are pres ent in the completely amorphous material. The measured physical proper ties are explained by means of the structural characteristics and the related phosphorus content. In the new type of material a very low mag netostriction value is predicted and its effect on the magnetoelastic wave amplitude is demonstrated.