%0 Journal Article
%A Seemann, K.M.
%A Garcia-Sanchez, F.
%A Kronast, F.
%A Miguel, J.
%A Kakay, A.
%A Schneider, C. M.
%A Hertel, R.
%A Freimuth, F.
%A Mokrousov, Y.
%A Blügel, S.
%T Disentangling the Physical Contributions to the Electrical Resistance in Magnetic Domain Walls: A Multiscale Study
%J Physical review letters
%V 108
%@ 0031-9007
%C College Park, Md.
%I APS
%M PreJuSER-22141
%P 077201
%D 2012
%Z K. M. S. thanks W. Kuch, C. H. Marrows, B. J. Hickey, A. Aziz, and M. G. Blamire and for fruitful discussions. F. G. thanks the Ministerio de Ciencia e Innovacion and the Fundacion Espanola para la Ciencia y la Tecnologia of Spain for financial support. We gratefully acknowledge S. Borm and E. Westphal for discussions and assistance. F. F. and Y. M. thank the HGF-YIG program VH-NG-513 and the Julich Supercomputing Centre for computational time.
%X 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.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000300246000022
%R 10.1103/PhysRevLett.108.077201
%U https://juser.fz-juelich.de/record/22141