title: Domain-wall movement control in Co/Au multilayers by He(+)-ion-bombardment-induced lateral coercivity gradients.
abstract: Defined perpendicular anisotropy gradients in the Co sublayers of a [Co(0.6  nm)/Au(2  nm)](3) sputter-deposited multilayer have been introduced by light ion bombardment through a wedged Au stopper layer. Within such a layer system, domain walls between up- and down-magnetized areas are controllably movable by an external perpendicular homogeneous magnetic field. This method and layer system is very promising for a controlled magnetic particle transport within the stray fields of the moving domain walls.
authors.affiliation: Institute of Molecular Physics, Polish Academy of Sciences, ul. Smoluchowskiego 17, 60-179 Poznań, Poland. urbaniak@ifmpan.poznan.pl
authors.forename: M
authors.initials: M
authors.lastname: Urbaniak
authors.forename: P
authors.initials: P
authors.lastname: Kuświk
authors.forename: Z
authors.initials: Z
authors.lastname: Kurant
authors.forename: M
authors.initials: M
authors.lastname: Tekielak
authors.forename: D
authors.initials: D
authors.lastname: Engel
authors.forename: D
authors.initials: D
authors.lastname: Lengemann
authors.forename: B
authors.initials: B
authors.lastname: Szymański
authors.forename: M
authors.initials: M
authors.lastname: Schmidt
authors.forename: J
authors.initials: J
authors.lastname: Aleksiejew
authors.forename: A
authors.initials: A
authors.lastname: Maziewski
authors.forename: A
authors.initials: A
authors.lastname: Ehresmann
authors.forename: F
authors.initials: F
authors.lastname: Stobiecki