Browsing by Author "7ffaa49e-3e3a-40e8-a81b-faa2b298318f"

Now showing items 1-4 of 4

    • Magnonic Black Holes 
      Roldán Molina, A.; Núñez Vásquez, Álvaro; Duine, R. A. (American Physical Society, 2017)
      © 2017 American Physical Society.We show that the interaction between the spin-polarized current and the magnetization dynamics can be used to implement black-hole and white-hole horizons for magnons - the quanta of ...
    • Spin-Wave Amplification and Lasing Driven by Inhomogeneous Spin-Transfer Torques 
      Doornenbal, R. J.; Roldán Molina, A.; Núñez Vásquez, Álvaro; Duine, R. A. (American Physical Society, 2019)
      We show that an inhomogeneity in the spin-transfer torques in a metallic ferromagnet under suitable conditions strongly amplifies incoming spin waves. Moreover, at nonzero temperatures the incoming thermally occupied spin ...
    • Symmetry and localization properties of defect modes in magnonic superlattices 
      Gallardo, R. A.; Schneider, T.; Roldán-Molina, A.; Langer, M.; Núñez Vásquez, Álvaro; Lenz, K.; Lindner, J.; Landeros, P. (American Physical Society, 2018-05)
      Symmetry and localization properties of defect modes of a one-dimensional bicomponent magnonic superlattice are theoretically studied. The magnonic superlattice can be seen as a periodic array of nanostripes, where stripes ...
    • Topological spin waves in the atomic-scale magnetic skyrmion crystal 
      Roldán Molina, A.; Núñez Vásquez, Álvaro; Fernández Rossier, J. (IOP, 2016)
      We study the spin waves of the triangular skyrmion crystal that emerges in a two-dimensional spin lattice model as a result of the competition between Heisenberg exchange, Dzyalonshinkii-Moriya interactions, Zeeman coupling ...