C11 – Control of magnetic domains and domain walls by thermal gradients

Funding period: 01/2012 – 12/2019

Principal investigators: Johannes Boneberg, Mikhail Fonin 

Scientific staff: Philipp Graus, Martin Stärk*, Philipp Möhrke (c), Stephen Riedel*
[* former member, (c) consultant]

In the project we study how magnetic domains and domain walls can be controlled by temperature gradients. By illumination of laser light in form of an interference pattern of a ns-laser pulse or by focused cw- and fs-laser local temperature gradients are created which induce changes in the magnetic domain configuration. By comparison of the effect of different illumination schemes and simulations of the resulting temperatures the mechanisms leading to changes in the domain structure shall be identified.

MFM microscopy of magnetic stripes which were prepared by pulsed laser lithography at periods of 1 µm and 650 nm. Dark and bright colors correspond to magnetization pointing out-of-plane in different directions. For details see publication: Stärk et al., Nanotechnology 26, 205302 (2015), doi: 10.1088/0957-4484/26/20/205302

For further information please also refer to the group websites: AG Scheer/Boneberg GroupAG Fonin

List of publications

2015

  • T. Pfadler, M. Stärk, E. Zimmermann, M. Putnik, J. Boneberg, J. Weickert, L. Schmidt-Mende, A comparison of light-coupling into high and low index nanostructured photovoltaic thin films, APL Mat. 3, 066101 (2015) - DOI: 10.1063/1.4921955
  • M. Stärk, F. Schlickeiser, D. Nissen, B. Hebler, P. Graus, D. Hinzke, E. Scheer, P. Leiderer, M. Fonin, M. Albrecht, U. Nowak, and J. Boneberg, Controlling the magnetic structure of Co/Pd thin films by direct laser interference patterning, Nanotechnology 26, 205302 (2015) - DOI: 10.1088/0957-4484/26/20/205302

2014

  • I. Martin-Fabiani, S. Riedel, D. Rueda, J. Siegel, J. Boneberg, T.A. Ezquerra, amd A. Nogales, Micro- and submicrostructuring thin polymer films with two and three-beam single pulse laser interference lithography, Langmuir 30, 8973 (2014) - DOI: 10.1021/la5021059
  • A. Ganser, D. Benner, R. Waitz, J. Boneberg, E. Scheer, and P. Leiderer, Time-resolved optical measurement of thermal transport by surface plasmon polaritons in thin metal stripes, Appl. Phys. Lett. 105, 191119 (2014)- DOI: 10.1063/1.4901956

2013

  • S. Riedel, T. Geldhauser, E. Scheer, P. Leiderer, F. Enderle, A. Plettl, and J. Boneberg, Pulsed Laser Interference Lithography: Principles and Applications, Advances in Nanotechnology – Physics, Chemistry and biology of functional nanostructures, Baden-Württemberg Stiftung, ISBN 978-3-00-039257-3 pp. 355-372 (2013)

2012

  • S. Riedel, P. Leiderer, E. Scheer, and J. Boneberg, Pulsed Laser Interference Patterning of Metallic Thin FilmsActa Phys. Pol. A 121, 385 (2012)