Synthesis and magnetic reversal of bi-conical Ni nanostructures Synthesis and magnetic reversal of bi-conical Ni nanostructures

Nicolas Biziere (1) , R Lassalle Ballier (2) , M.C. Clochard (3) , M Viret (2) , Travis L Wade (3) , E Balanzat (4) , Jean Eric Wegrowe (3)

1 CEMES - Centre d'élaboration de matériaux et d'études structurales
2 SPEC - UMR3680 - Service de physique de l'état condensé
3 LSI - Laboratoire des Solides Irradiés - Irradiated Solids Laboratory
4 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique

Microstructure study of pinning sites of highly (0001) textured Sm(Co,Cu)5 thin films grown on Ru underlayer J. Appl. Phys. 111, 07B730 (2012) Spin-torque diode spectrum of ferromagnetically coupled (FeB/CoFe)/Ru/(CoFe/FeB) synthetic free layer J. Appl. Phys. 111, 07C917 (2012) Textured Nd2Fe14B flakes with enhanced coercivity J. Appl. Phys. 111, 07A735 (2012) Influence of Si Co-doping on electrical transport properties of magnesium-doped boron nanoswords Appl. Phys. Lett. 100, 103112 (2012) Additional information on J. Appl. Phys. Journal Homepage: http://jap.aip.org/ Journal Information: Template synthesis in polyethylene terephthalate (PET) membranes has been used to grow hour glass shaped nickel nanowires with a constriction in the range of tens of nanometers at the center. Anisotropic magnetoresistance measurements have been performed on a single nanowire to follow magnetization reversal of the structure. The results are explained via 3D micromagnetic simulations showing the appearance of a complex vortex state close to the constriction whose propagation depends on the angle between the cone axis and the applied field.

Domaines: Polymères

Nicolas Biziere, R Lassalle Ballier, M.C. Clochard, M Viret, Travis L Wade, et al.. Synthesis and magnetic reversal of bi-conical Ni nanostructures Synthesis and magnetic reversal of bi-conical Ni nanostructures. Journal of Applied Physics, 2011, pp.063906. ⟨10.1063/1.3638072⟩. ⟨hal-01128117⟩