Contact

Porträt Dr. Wintz, Sebastian; FWIN

Dr. Sebastian Wintz
Magnetism
s.wintz@hzdr.de
Phone: +49 351 260 - 2919

Dynamics of Spin Textures

Cover
From: FWI Annual Report 2011
Illustration: Katrin Kerbusch

Nanoscale spin textures are the building blocks for present magnetic data storage devices, in particular hard disk drives. However, future memory and logic applications need to match the demand for an increasing data density, read/write performance, and energy efficiency. For the technological development, it is crucial to gain knowledge on the physics governing the magnetization dynamics of nanoscale spin textures. We investigate such dynamics by direct imaging with x-ray microscopy; a technique that achieves a combined resolution of approximately 10 nanometers and 10 picoseconds in space and time, respectively.

 

Research Topics

  • Dynamics of ferromagnetic spin textures
  • Spinvortices in ferromagnetic multilayers
  • Interaction of spin waves and spin textures

News

A mini-antenna for the data processing of tomorrow
HZDR press release 19.07.2016

Ion beams pave way to new kinds of valves for use in spintronics
HZDR press release 17.02.2014

Magnetic Vortex Antennas for Wireless Data Transmission
HZDR press release 06.05.2013


Parners:

Jörg Raabe (PSI Villigen, Switzerland)

Markus Weigand (MPI-IS Stuttgart | Bessy2 HZB Berlin)

Guido Meier (MPSD Hamburg, Germany)

Mi-Young Im (LBNL Berkeley, USA)

Andrei Slavin (Oakland University, USA)

Jeffrey McCord (Universität Kiel)


 



Publications

 

2016

  • "Magnetic Vortex Cores as Tunable Spin-Wave Emitters"
    S. Wintz, V. Tiberkevich, M. Weigand, J. Raabe, J. Lindner, A. Erbe, A. Slavin, J. Fassbender
    Nature Nanotech. (2016).

2015

  • "Direct Depth- and Lateral- Imaging of Nanoscale Magnets Generated by Ion Impact" 
    F. Röder, G. Hlawacek, S. Wintz, R. Hübner, L. Bischoff, H. Lichte, K. Potzger, J. Lindner, J. Fassbender, R. Bali 
    Sci. Rep. 5, 16786 (2015).


2014

  • "Magnetization Reversal of Disorder-Induced Ferromagnetic Regions in Fe60Al40 Thin Films"
    N. Tahir, R. Gieniusz, A. Maziewski, R. Bali, M. P. Kostylev, S. Wintz, H. Schultheiss, S. Facsko, K. Potzger, J. Lindner, J. Fassbender
    IEEE Trans. Magn. 50, 6101304 (2014).

  • “Exploiting Disorder Induced Ferromagnetism for Printing Discrete Magnetic Patterns in Thin Films”
    R. Bali, S. Wintz, F. Meutzner, R. Huebner, R. Boucher, A. K. Ünal, S. Valencia, A. Neudert, K. Potzger, J. Bauch, F. Kronast, S. Facsko, J. Lindner, J. Fassbender 
    Nano Lett. 14, 435 (2014).

  • “Ion induced compositionally modulated ripples during composite film growth: three-dimensional pattern formation at the nanoscale”
    M. Krause, M. Buljan, A. Mücklich, W. Möller, M. Fritzsche, S. Facsko, R. Heller, M. Zschornack, S. Wintz, J. L. Endrino, C. Baehtz, A. Shalimov, S. Gemming, G. Abrasonis
    Phys. Rev. B 89, 085418 (2014).

2013

  • "Lateral spin transfer torque induced magnetic switching at room temperature demonstrated by x-ray microscopy"
    M. Buhl, A. Erbe, J. Grebing, S. Wintz, J. Raabe, J. Fassbender
    Sci. Rep. 3, 2945 (2013).

  • "Topology and origin of effective spin meron pairs in ferromagnetic multilayer elements"
    S. Wintz, C. Bunce, A. Neudert, M. Körner, T. Strache, M. Buhl, A. Erbe, S. Gemming, J. Raabe, C. Quitmann, J. Fassbender
    Phys. Rev. Lett. 110, 177201 (2013). 

  • "Tuning of the nucleation field in nanowires with perpendicular magnetic anisotropy"
    J. Kimling, T. Gerhardt, A. Kobs, A. Vogel, S. Wintz, M.-Y. Im, P. Fischer, H. P. Oepen, U. Merkt, G. Meier 
    J. Appl. Phys. 113, 163902 (2013).

2012

  • "Interlayer coupled spin vortex pairs and their response to external magnetic fields"
    S. Wintz, C. Bunce, A. Banholzer, M. Körner, T. Strache, R. Mattheis, J. Raabe, C. Quitmann, J. Mccord, A. Erbe, J. Fassbender
    Phys. Rev. B 85, 224420 (2012).

  • "Control of vortex pair states by post-deposition interlayer exchange coupling modification"
    S. Wintz, T. Strache, M. Körner, C. Bunce, A. Banholzer, I. Mönch, R. Mattheis, J. Raabe, C. Quitmann, J. Mccord, A. Erbe, K. Lenz, J. Fassbender
    Phys. Rev. B 85, 134417 (2012).

  • “Tilting of carbon encapsulated nickel nanocolumns by ion beam assisted deposition“ 
    M. Krause, A. Mücklich, T. W. H. Oates, M. Zschornak, S. Wintz, J. L. Endrino, C. Baehtz, A. Shalimov, S. Gemming, G. Abrasonis 
    Appl. Phys. Lett. 101, 053112 (2012).

  • “Environment Controlled De-wetting of Rh-Pd Bilayers: a Route for Core-Shell Nanostructure Synthesis“ 
    G. Abrasonis, S. Wintz, M. O. Liedke, F. Aksoy, M. Krause, D. Banerjee, Z. Liu, S. Gemming 
    J. Phys. Chem. C 116, 14401 (2012).

2011

2010


2009

  • "Magnetization dynamics of Landau structures: tuning the response of mesoscopic objects using defects"
    K. Kuepper, S. Wintz, J. Raabe, M. Buess, Ch. Akhmadaliev, L. Bischoff, C. Quitmann, J. Fassbender
    J. Phys.: Cond. Mater 21, 436003 (2009).

  • "Introducing artificial length scales to tailor magnetic properties"
    J. Fassbender, T. Strache, M. O. Liedke, D. Marko, S. Wintz, K. Lenz, A. Keller, S. Facsko, I. Mönch, and J. Mccord

    New J. Phys. 11, 125002 (2009).

Contact

Dr. Sebastian Wintz
Magnetism
s.wintz@hzdr.de
Phone: +49 351 260 - 2919