1999/01/22 by U. Ruediger, U. Rüdiger, Jia Yu +6 · 2 citations
Materials Science · Physics and Astronomy · #Magnetic Properties and Applications #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.59.11914
published as Physical Review B, 59(18),11914 (1999) · 5 pages, 5 Figures, submitted to PRB
arxiv created 1999/01/22 · openalex publication_date 1999/05/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Large negative magnetoresistance (MR) observed in transport measurements of hcp Co films with stripe domains were recently reported and interpreted in terms of domain-wall (DW) scattering mechanism. Here detailed MR measurements, magnetic force microscopy, and micromagnetic calculations are combined to elucidate the origin of MR in this material. The large negative room-temperature MR reported previously is shown to be due to ferromagnetic resistivity anisotropy. Measurements of the resistivity for currents parallel (CIW) and perpendicular to DW's (CPW) have been conducted as a function of temperature. Low-temperature results show that any intrinsic effect of DW's scattering on MR of this material is very small compared to the anisotropic MR.