%0 Journal Article
%A Jenni, K.
%A Kunkemöller, S.
%A Tewari, A.
%A Ewings, R. A.
%A Sidis, Y.
%A Schneidewind, A.
%A Steffens, P.
%A Nugroho, A. A.
%A Braden, M.
%T Magnon dispersion in ferromagnetic SrRuO 3
%J Physical review / B
%V 107
%N 17
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2023-02206
%P 174429
%D 2023
%X The magnetic excitations in ferromagnetic SrRuO3 were studied by inelastic neutron scattering combiningexperiments on triple-axis and time-of-flight spectrometers with and without polarization analysis. A quadraticspin-wave dispersion with an anisotropy gap describes the low-energy low-temperature response. The magnondispersion extends to at least 35 meV and there is no direct evidence for a continuum of Stoner excitations belowthis energy. However, the magnon response is weakened at higher energy. In addition to the anomalous softeningof the spin-wave stiffness and of the gap, which is induced by the topology of the Bloch states, the magnonexcitations are broadened in energy and this effect increases upon heating.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001004990000004
%R 10.1103/PhysRevB.107.174429
%U https://juser.fz-juelich.de/record/1007821