title: Disentangling the physical contributions to the electrical resistance in magnetic domain walls: a multiscale study.
abstract: We analyze the origin of the electrical resistance arising in domain walls of perpendicularly magnetized materials by considering a superposition of anisotropic magnetoresistance and the resistance implied by the magnetization chirality. The domain wall profiles of L1(0)-FePd and L1(0)-FePt are determined by micromagnetic simulations based on which we perform first-principles calculations to quantify electron transport through the core and closure region of the walls. The wall resistance, being twice as high in L1(0)-FePd than in L1(0)-FePt, is found to be clearly dominated in both cases by a high gradient of magnetization rotation, which agrees well with experimental observations.
authors.affiliation: Peter Grünberg Institute, Forschungszentrum Jülich and Jülich-Aachen Research Alliance, Jülich, Germany. k.seemann@fz-juelich.de
authors.forename: K M
authors.initials: KM
authors.lastname: Seemann
authors.forename: F
authors.initials: F
authors.lastname: Garcia-Sanchez
authors.forename: F
authors.initials: F
authors.lastname: Kronast
authors.forename: J
authors.initials: J
authors.lastname: Miguel
authors.forename: A
authors.initials: A
authors.lastname: Kákay
authors.forename: C M
authors.initials: CM
authors.lastname: Schneider
authors.forename: R
authors.initials: R
authors.lastname: Hertel
authors.forename: F
authors.initials: F
authors.lastname: Freimuth
authors.forename: Y
authors.initials: Y
authors.lastname: Mokrousov
authors.forename: S
authors.initials: S
authors.lastname: Blügel