Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

Magnetic domain walls as reconfigurable spin-wave nanochannels

Wagner, K.; Kakay, A.; Schultheiss, K.; Henschke, A.; Sebastian, T.; Schultheiss, H.

In the research field of magnonics, it is envisaged that spin waves will be used as information carriers, promoting operation based on their wave properties. However, the field still faces major challenges. To become fully competitive, novel schemes for energy-efficient control of spin-wave propagation in two dimensions have to be realized on much smaller length scales than used before. In this Letter, we address these challenges with the experimental realization of a novel approach to guide spin waves in reconfigurable, nano-sized magnonic waveguides. For this purpose, we make use of two inherent characteristics of magnetism: the non-volatility of magnetic remanence states and the nanometre dimensions of domain walls formed within these magnetic configurations. We present the experi- mental observation and micromagnetic simulations of spin- wave propagation inside nano-sized domain walls and realize a first step towards a reconfigurable domain-wall-based magnonic nanocircuitry.

Keywords: magnetism; magnons; spin waves; domain walls; magnonics; spin wave logic; Brillouin light scattering

Related publications

  • Nature Nanotechnology 11(2016)5, 432-436
    Online First (2016) DOI: 10.1038/NNANO.2015.339
    Cited 210 times in Scopus
  • Invited lecture (Conferences)
    SPIE 9931, Spintronics IX, 29.08.-1.9.2016, San Diego, U.S.A.
  • Invited lecture (Conferences)
    MMM Conference, 31.10.-04.11.2016, New Orleans, U.S.A.
  • Lecture (Conference)
    MML Conference, 20.-24.06.2016, Uppsala, Schweden
  • Contribution to proceedings
    SPIE 9931, Spintronics IX, 29.08.-01.09.2016, San Diego, U.S.A.
    Magnetic domain walls as reconfigurable spin-wave nano-channels
    DOI: 10.1117/12.2237733

Publ.-Id: 23285