Individual domain wall resistance in submicron ferromagnetic structures.
The resistance generated by individual domain walls is measured in a FePd nanostructure. Combining transport and magnetic imaging measurements, the intrinsic domain wall resistance is quantified. It is found positive and of a magnitude consistent with that predicted by models based on spin scattering effects within the walls. This magnetoresistance at a nanometer scale allows a direct counting of the number of walls inside the nanostructure. The effect is then used to measure changes in the magnetic configuration of submicron stripes under application of a magnetic field.
Danneau
R
R
Service de Physique de l'Etat Condensé, CEA Orme des Merisiers, F-91191 Gif-Sur-Yvette, France.
Warin
P
P
Attané
J P
JP
Petej
I
I
Beigné
C
C
Fermon
C
C
Klein
O
O
Marty
A
A
Ott
F
F
Samson
Y
Y
Viret
M
M