ANISOTROPIC MAGNETOTRANSPORT PROPERTIES OF COBALT THIN-FILMS

Anisotropic magnetoresistance of order 1% was measured on a series of cobalt films. A -M(2) effect was observed in the out-of-plane magnetor esistance and a large extraordinary Hall effect was also found for app lied fields B-0 smaller than the saturation polarisation J(s),. The or igin of the -M(2) effect is discussed in the light of the different sp in dependent mean free paths of majority and minority carriers recentl y measured in cobalt.