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Field of expertise: Magnetic Thin Films, Magnetic Colloids, Polarized Neutron Scattering

Work Places: Kassel University, Germany; Institut Laue-Langevin (ILL), Grenoble, France

Abstract:

We are seeking applications for a PhD project in collaboration between the University of Kassel, Germany, and the Institute Laue-Langevin, France. The goal of this project is to characterize the guided assembly and movement of magnetic particles on tailored magnetic domain patterns for lab-on-a-chip applications using neutron scattering techniques.

The domain patterns are engineered by light-Ion bombardment-induced magnetic patterning (IBMP), allowing the generation of diverse magnetization configurations in exchange bias (EB) thin film systems. Magnetic domain walls in the patterns are sources of a magnetic stray field landscape, allowing for the capture and transport of magnetic particles inside a liquid. The topographically flat nature of the structures and the freedom to create almost arbitrary geometries result in a high application potential for lab-on-a-chip technologies, for example in medical diagnostics. Using state-of-the-art fabrication and characterization techniques, the project's main objectives are understanding the magnetic textures and the dynamic assembly of particles on top of them.

In year 1 of the project, at Kassel University (Germany), the candidate will fabricate and pre-characterize the thin film templates and domain patterns by magnetron sputtering, lithography, light-ion bombardment, and Kerr-/Vibrating sample-magnetometry. Years 2 and 3 of the project will take place at the ILL in Grenoble (France), where he/she actively proposes, conducts, and analyses polarized neutron reflectometry measurements on the D17 beamline, characterizing the spin configurations of the domain patterns. In collaboration with the sample environment team, a microfluidic cell will be designed that enables the in situ analysis of in-liquid actuation of magnetic particles. Based on the results, the Kassel team will assist with fabrication of new samples during years 2 and 3 of the project.

We are looking for a highly motivated candidate with an M.Sc. degree in physics or material science. Prior experience in magnetic thin film fabrication, characterization, or neutron reflectometry will be an advantage. The candidate will work in a collaborative environment at cutting-edge research facilities.

How to apply: Please submit your application online through the University of Kassel web platform via the "Online Application" button at the bottom of the job posting. Your application should include your CV, a short motivation letter, your Bachelor/Master certificate, a short summary of your master thesis, and a contact person for reference.

Unsere Gruppe bietet DoktorandInnenstellen in einem inspirierenden und internationalen Forschungsumfeld. Für weitere Informationen wenden Sie sich an Prof. Dr. Arno Ehresmann, Dr. Rico Huhnstock oder Dr. Andreas Hans.