Coherent spin wave emission from magnetic vortex cores


Coherent spin wave emission from magnetic vortex cores

Wintz, S.; Erbe, A.; Lindner, J.; Weigand, M.; Stoll, H.; Schütz, G.; Raabe, J.; Quitmann, C.; Tyberkevych, V.; Slavin, A.; Fassbender, J.

Spin wave phenomena are an intensely studied field of magnetism, ranging from fundamental magnonics to possible spin wave applications in logic or oscillator devices. In particular, the propagation of nanoscopic spin waves has come into focus. Typically, micro-striplines or point-contacts are used to excite such spin waves in ferromagnetic media. A real-space observation of nanoscopic spin wave propagation, however, has not been reported yet. On this background we present the direct imaging of spin wave propagation as well as a novel concept for their coherent generation based on the dynamics of interlayer coupled magnetic vortex pairs.

Keywords: spin waves; vortex

  • Lecture (Conference)
    The 8th International Symposium on Magnetic Multilayers (MML) 2013, 19.-24.05.2013, Kyoto, Japan

Permalink: https://www.hzdr.de/publications/Publ-18075
Publ.-Id: 18075