Magnetic force sensing using a self-assembled nanowire

Rossi, Nicola and Gross, Boris and Dirnberger, Florian and Bougeard, Dominique and Poggio, Martino. (2019) Magnetic force sensing using a self-assembled nanowire. Nano Letters, 19. pp. 930-936.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/68579/

Downloads: Statistics Overview


We present a scanning magnetic force sensor based on an individual magnet-tipped GaAs nanowire (NW) grown by molecular beam epitaxy. Its magnetic tip consists of a final segment of single-crystal MnAs formed by sequential crystallization of the liquid Ga catalyst droplet. We characterize the mechanical and magnetic properties of such NWs by measuring their flexural mechanical response in an applied magnetic field. Comparison with numerical simulations allows the identification of their equilibrium magnetization configurations, which in some cases include magnetic vortices. To determine a NW's performance as a magnetic scanning probe, we measure its response to the field profile of a lithographically patterned current-carrying wire. The NWs' tiny tips and their high force sensitivity make them promising for imaging weak magnetic field patterns on the nanometer-scale, as required for mapping mesoscopic transport and spin textures or in nanometer-scale magnetic resonance.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Rossi, Nicola and Gross, Boris André and Poggio, Martino
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:02 May 2019 12:24
Deposited On:02 May 2019 12:23

Repository Staff Only: item control page