TY  - JOUR
AU  - Jenni, K.
AU  - Kunkemöller, S.
AU  - Tewari, A.
AU  - Ewings, R. A.
AU  - Sidis, Y.
AU  - Schneidewind, A.
AU  - Steffens, P.
AU  - Nugroho, A. A.
AU  - Braden, M.
TI  - Magnon dispersion in ferromagnetic SrRuO 3
JO  - Physical review / B
VL  - 107
IS  - 17
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2023-02206
SP  - 174429
PY  - 2023
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001004990000004
DO  - DOI:10.1103/PhysRevB.107.174429
UR  - https://juser.fz-juelich.de/record/1007821
ER  -