MeV ion irradiation of Co/Cu multilayers
作者： M. Cai , T. Veres , S. Roorda , R. W. Cochrane , R. Abdouche
DOI: 10.1063/1.364465
关键词:
摘要: We examine the effect of MeV ion-beam irradiation on giant magnetoresistance and related interlayer magnetic coupling in sputtered Co/Cu multilayers. At ion doses higher than 1013/cm2, resistivity multilayers increases noticeably, well beyond that measured for pure copper or cobalt films. This increase is tentatively ascribed to ion-beam-induced interface disorder. With increasing dose, passes systematically from a mainly antiferromagnetic (AF) ferromagnetic one and, parallel, (GMR) progressively destroyed. A linear relationship between GMR volume fraction AF coupled regions observed up an dose 2×1014/cm2.
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