Magnetotransport properties of Fe0.8Ga0.2 films with stripe domains

M. GRANADA; S. BUSTINGORRY; D. E. PONTELLO; M. BARTUREN; M. EDDRIEF; M. MARANGOLO; J. MILANO

PHYSICAL REVIEW B

AMER PHYSICAL SOC

Lugar: New York; Año: 2016 vol. 94 p. 184435 - 184435

1098-0121

Magnetotransport properties of Fe0.8Ga0.2 films with stripe domains are studied. The anisotropic magnetoresistance dominates the low field behavior, which is extremely dependent on the mag- netic domains configuration. The magnetoresistance measured at different temperatures displays qualitatively different behaviors depending on the measurement configuration. When the stripes are oriented along the electric current, the low-field magnetoresistance changes sign with temperat- ure, while when the stripes are perpendicular to the electric current the magnetoresistance curves are nearly temperature-independent. A simple model considering parallel (series) conduction along (across) the stripes, plus the temperature dependence of anisotropic magnetoresistance and domains configuration, accounts for these experimental results.