アモルファスＧｄ67Ｎｉ33合金の局所構造 : シンクロトロン放射光によるEXAFS測定

We report studies on an amorphous Gd67Ni33 alloy using extended X-ray absorption fine structure(EXAFS)measurements The following results about the local structure around a Gd atom are obtained from analysis for EXAFS spectra of LIH absorption edge of Gd. The Gd atom has 13.6 nearest neighbor atoms which consist of 9.2 Gd atoms and 4.4 Ni neighbors. The number of neighbors is slightly larger than 12 atoms in the face centered cubic structure. Two sorts of Ni atoms, wich show different inter atomic distance, are located around Gd.