MAGNETIZATION AND NMR-STUDY OF THE MAGNETIC INHOMOGENEITIES AND ELECTRONIC-STRUCTURE FLUCTUATIONS IN THE METALLIC GLASSES NI80P14B6 AND NI78B14SI8

Combined magnetization and NMR (**1**1B and **3**1P) linewidth and Knight shift studies were performed on the paramagnetic Ni//8//0P//1//4B//6 and Ni//7//8B//1//4Si//8 metallic glasses as a function of temperature and external magnetic field. This allowed us to remove the line-broadening term due to giant-moment paramagnetic clusters from the observed field-dependent broadening and the remaining broadening characteristic for the inhomogeneous Knight shift could be obtained. This analysis revealed a proportionality between the average Knight shift and the width of the Knight shift distribution for metalloid nuclei and this is interpreted as a correlation between the average local electronic properties at the Fermi energy and their fluctuations on the metalloid sites in Ni-metalloid type amorphous alloys. Some conclusions will also be drawn regarding the magnetic inhomogeneities and short-range order in this kind of metallic glasses.