OSCILLATORY COUPLING OF THE Co-Nb/Cr MULTILAYERED FILMS
Co—Nb／Cr磁性多层膜的振荡耦合

Co-Nb/Cr multilayered films were prepared with the rf-sputtering method. The magnetic properties of the samples were studied by a micropro cessor-controlled vibrating-sample magnetometer. When the charging Ar pressure PAr=2.67 Pa, an oscillation between ferromagnetic and antiferromagnetic coupling with the thickness of Cr layers was found, and the spontaneous magnetization Ms remains constant basically. When PAr=0.67 Pa, the value of Ms shows an oscillatory behaviour, which may be related to the oscillatory variation of the paramagnetic component in the ferromagnetic layers.