Magnetic nanoconstrictions made from nickel electrodeposition in polymeric bi-conical tracks: Magneto-transport behavior

Abstract : Single nanoconstriction per magnetic wire is obtained by bi-conical track etching and electrodeposition. Magnetoresistance measurements at various angles result in irreversible jumps. Resulting jumps of magnetization have been attributed to the pinning and depinning of a constrained magnetic domain wall. a b s t r a c t In a cylindrical magnetic nanowire, a magnetic domain wall (DW) can move along the wire when an applied magnetic field or a spin-polarized current is applied. We show that in a magnetic device composed of two conical nanowires connected by a nanosized constriction, a DW can be trapped and detrapped. The magnetoreistance and the relaxation processes of the DW exhibit a specific behavior. Such a device has been fabricating by Ni electrodeposition in bi-conical tracks polymer membrane made of Swift Heavy Ions bombarded poly(VDF-co-TrFE) copolymer and poly(ethylene terephtalate) PET thin films. The latter method allows to monitor the conicity of the bi-conical wires and to give access to a panel of very well-defined structures. &
Document type :
Journal articles
Complete list of metadatas

Cited literature [10 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01011940
Contributor : Marie-Claude Clochard <>
Submitted on : Tuesday, March 10, 2015 - 4:51:58 PM
Last modification on : Monday, April 29, 2019 - 3:22:51 PM
Long-term archiving on : Thursday, June 11, 2015 - 11:35:51 AM

Files

clochard _RPC.pdf
Files produced by the author(s)

Identifiers

Citation

M-C Clochard, M El Jouad, Nicolas Biziere, Pham Do, H-J Drouhin, et al.. Magnetic nanoconstrictions made from nickel electrodeposition in polymeric bi-conical tracks: Magneto-transport behavior. International Journal for Radiation Physics and Chemistry, Elsevier, 2014, pp.173910. ⟨10.1016/j.radphyschem.2013.06.016⟩. ⟨hal-01011940v2⟩

Share

Metrics

Record views

979

Files downloads

189