J. Phys. IV France
Volume 08, Numéro PR2, June 1998
Soft Magnetic Materials 13
Page(s) Pr2-453 - Pr2-456
Soft Magnetic Materials 13

J. Phys. IV France 08 (1998) Pr2-453-Pr2-456

DOI: 10.1051/jp4:19982106

High-sensitive giant magnetoresistance in permalloy/Cu multilayers

T. Lucinski, F. Stobiecki, B. Szymanski, J. Dubowik, M. Schmidt and M. Urbaniak

Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland

We report on giant magnetoresistance (GMR) of Si(100)/Cu-20nm/(Py-dPy/Cu-dCu)100 where Py=Ni83Fe17, multilayer films prepared by face-to-face sputtering with 0.5 ≤ dCu ≤ 3.5 nm and 0.5 ≤ dPy ≤ 10 nm. It has been shown that the GMR sensitivity depends on the relative changes of resistivity as well as on the value of the antiferromagnetic interlayer exchange coupling strength JAF. The highest GMR sensitivity (0.5%/Oe) has been achieved for dCu=2.1 nm and dPy=3.5 nm.

© EDP Sciences 1998