TY - JOUR
T1 - Effects of Fe and Co addition on the magnetoresistance in Ni-Mn-Ga films
AU - Koike, K.
AU - Ohtsuka, M.
AU - Matsumoto, M.
AU - Adachi, Y.
AU - Takagi, T.
AU - Kato, H.
PY - 2008/5
Y1 - 2008/5
N2 - Effects of Fe and Co addition on the magnetoresistance MR were investigated in sputtered Ni-Mn-Ga-M (M = Fe, Co) films. With increasing M content, magnetization σ enhanced for M = Fe, while it reduced for M = Co. At 300 K, absolute MR value at 1.5 T MR 1.5 was about 1%. The value of MR 1.5 was found to be decreased with increasing M = Fe content. In the case of M = Co, MR 1.5 increased with M content. MR 1.5 of the film containing Co 1.6 at.% showed a maximum value of 2.5% at 355 K in the vicinity of the Curie temperature TC. An origin of MR behavior in the present films was suggested to be explained by a s-d scattering model.
AB - Effects of Fe and Co addition on the magnetoresistance MR were investigated in sputtered Ni-Mn-Ga-M (M = Fe, Co) films. With increasing M content, magnetization σ enhanced for M = Fe, while it reduced for M = Co. At 300 K, absolute MR value at 1.5 T MR 1.5 was about 1%. The value of MR 1.5 was found to be decreased with increasing M = Fe content. In the case of M = Co, MR 1.5 increased with M content. MR 1.5 of the film containing Co 1.6 at.% showed a maximum value of 2.5% at 355 K in the vicinity of the Curie temperature TC. An origin of MR behavior in the present films was suggested to be explained by a s-d scattering model.
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U2 - 10.1140/epjst/e2008-00667-1
DO - 10.1140/epjst/e2008-00667-1
M3 - Article
AN - SCOPUS:43049126209
SN - 1951-6355
VL - 158
SP - 143
EP - 148
JO - European Physical Journal: Special Topics
JF - European Physical Journal: Special Topics
IS - 1
ER -