TY - JOUR
T1 - Magnetoresistance of granular ferromagnets
AU - Gerber, A.
AU - Milner, A.
AU - Groisman, B.
AU - Karpovsky, M.
AU - Gladkikh, A.
AU - Sulpice, A.
PY - 1997
Y1 - 1997
N2 - We report a comparative study of the magnetic and magnetoresistance phenomena in two types of granular ferromagnets: ferromagnet-normal-metal mixtures Ni-Ag, Co-Ag, and ferromagnet-insulator mixtures Ni-(Formula presented), Co-(Formula presented) . Anisotropic magnetoresistance and giant magnetoresistance (GMR) are identified in both types of systems above and below the magnetic component percolation threshold respectively. The GMR effect in granular ferromagnets is shown to be essentially independent of the nature and resistance of the nonmagnetic intergranular matrix.
AB - We report a comparative study of the magnetic and magnetoresistance phenomena in two types of granular ferromagnets: ferromagnet-normal-metal mixtures Ni-Ag, Co-Ag, and ferromagnet-insulator mixtures Ni-(Formula presented), Co-(Formula presented) . Anisotropic magnetoresistance and giant magnetoresistance (GMR) are identified in both types of systems above and below the magnetic component percolation threshold respectively. The GMR effect in granular ferromagnets is shown to be essentially independent of the nature and resistance of the nonmagnetic intergranular matrix.
UR - http://www.scopus.com/inward/record.url?scp=0001403320&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.55.6446
DO - 10.1103/PhysRevB.55.6446
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AN - SCOPUS:0001403320
SN - 1098-0121
VL - 55
SP - 6446
EP - 6452
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 10
ER -