Abstract Magnetic multilayers ［Co-Nb(1.5 or 3.6 nm)/Pd(x nm)］40 were fabricated by radio frequency sputtering synthesis.The structures and magnetic properties of the Co-Nb/Pd multilayers were studied by X-ray diffraction,vibrating sample magnetometer,torque magnetometer and ferromagnetic resonance measurements.The oscillatory dependence of the phase structure,the strain,the ferromagnetic inter layer coupling and the spacer polarization of multilayers on the increase of Pd spacer thickness was observed.The relationship among phase structure,strain,inte rlayer coupling and the polarization of Pd spacers was discussed.The magnetic polarization of Pd spacers will enhance the ferromagnetic coupling between magnetic layers and will restrain antiferromagnetic coupling to occur.The spin dependent electron transport along the normal direction of multilayers and its exchange interaction play key roles in causing these oscillatory behaviors.
Received: 12 September 1996
Revised: 28 January 1997
Accepted manuscript online:
PACS:
75.70.Cn
(Magnetic properties of interfaces (multilayers, superlattices, heterostructures))
(Magnetization curves, hysteresis, Barkhausen and related effects)
Fund: Project supported by the National Natural Science Foundation of China and by the Doctoral Training Foundation of the State Education Commission of China.
Cite this article:
MEI LIANG-MO (梅良模), YAN SHI-SHEN (颜世申), LI MIN (李民), LIU YI-HUA (刘宜华), T.P.Ma, R.C.Barker STRUCTURES,Pd SPACER POLARIZATION AND MAGNETIC PROPERTIES OF Co-Nb/Pd MULTILAYERS 1997 Acta Physica Sinica (Overseas Edition) 6 901
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