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Giant magnetoresistance in soft magnetic NiFeCo/Cu multilayers with various buffer layers

1993; Elsevier BV; Volume: 126; Issue: 1-3 Linguagem: Inglês

10.1016/0304-8853(93)90644-h

1873-4766

M. Jimbo, T. Kanda, Shoji Goto, Shigeru Tsunashima, Susumu Uchiyama,

Magnetic and transport properties of perovskites and related materials

The effect of buffer layers on giant magnetoresistance has been investigated for Ni66Fe16Co18/Cu multilayers with Fe, FeCo, NiFeCo and CoZr buffer layers. The structure and the antiferromagnetic coupling strength of the multilayers were found to depend on the crystal structure of buffer layers. At a Cu layer thickness of 2.2 nm, which correponds to the 2nd peak of MR ratio, the multilayers with NiFeCo and CoZr buffer layers exhibited much smaller saturation fields than those with Fe and FeCo buffer layers.