Domain-Wall Movement Control in Co/Au Multilayers by He{sup +}-Ion-Bombardment-Induced Lateral Coercivity Gradients

Journal Article · Fri Aug 06 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.067202· OSTI ID:21470941

Urbaniak, M; Kuswik, P; Szymanski, B; Schmidt, M; Aleksiejew, J; Stobiecki, F ^[1]; Kurant, Z; Tekielak, M; Maziewski, A ^[2]; Engel, D; Lengemann, D; Ehresmann, A ^[3]

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1. Institute of Molecular Physics, Polish Academy of Sciences, ul. Smoluchowskiego 17, 60-179 Poznan (Poland)
2. Laboratory of Magnetism, Faculty of Physics, University of Bialystok, ul. Lipowa 41, 15-424 Bialystok (Poland)
3. Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel (Germany)

Defined perpendicular anisotropy gradients in the Co sublayers of a [Co(0.6 nm)/Au(2 nm)]{sub 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.

• OSTI ID: 21470941
• Journal Information: Physical Review Letters, Vol. 105, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.105.067202; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
COBALT
COERCIVE FORCE
DOMAIN STRUCTURE
GOLD
HELIUM IONS
INTERFACES
ION BEAMS
IRRADIATION
LAYERS
MAGNETIC FIELDS
MAGNETIC MATERIALS
PARTICLES
PHYSICAL RADIATION EFFECTS
SPUTTERING
THIN FILMS
BEAMS
CHARGED PARTICLES
ELEMENTS
FILMS
IONS
MATERIALS
METALS
RADIATION EFFECTS
TRANSITION ELEMENTS