Perpendicular giant magnetoresistance of Co/Cu multilayers deposited under an angle on grooved substrates

M.A.M. Gijs, M.T. Johnson, A. Reinders, P.E. Huisman, R.J.M. Veerdonk, van de, S.K.J. Lenczowski, R.M.J. van Gansewinkel

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Abstract

We propose a novel experimental technique for investigating the giant magnetoresistance effect measured with the current perpendicular to the layer plane (the so-called CPP geometry). Using holographic laser interference nanofabrication techniques and anisotropic etching the surface of semi-insulating InP substrates is patterned into V-shaped grooves of 0.2 µm width. Subsequently, a magnetic multilayer can be evaporated under an angle with the substrate normal, naturally resulting in a CPP-like magnetoresistance configuration. The technique is illustrated for Co/Cu multilayers, for which we present magnetization and magnetoresistance experiments.
Original languageEnglish
Pages (from-to)1839-1841
Number of pages3
JournalApplied Physics Letters
Volume66
Issue number14
DOIs
Publication statusPublished - 1995

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