This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.107.174429 in citations.
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2023-02206 in citations.
Magnon dispersion in ferromagnetic SrRuO 3
Magnon dispersion in ferromagnetic SrRuO 3
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 r...
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Personal Name(s): | Jenni, K. (First author) |
---|---|
Kunkemöller, S. / Tewari, A. / Ewings, R. A. / Sidis, Y. / Schneidewind, A. / Steffens, P. / Nugroho, A. A. / Braden, M. (Corresponding author) | |
Contributing Institute: |
Heinz Maier-Leibnitz Zentrum; MLZ JCNS-4; JCNS-4 Streumethoden; JCNS-2 JCNS-FRM-II; JCNS-FRM-II |
Published in: | Physical review / B, 107 (2023) 17, S. 174429 |
Imprint: |
Woodbury, NY
Inst.
2023
|
DOI: |
10.1103/PhysRevB.107.174429 |
DOI: |
10.34734/FZJ-2023-02206 |
Document Type: |
Journal Article |
Research Program: |
Kristallzucht und Materialentwicklung (A02) Untersuchung von Dynamik und Korrelationen mit Neutronenstreuung (B04) Jülich Centre for Neutron Research (JCNS) (FZJ) Materials – Quantum, Complex and Functional Materials |
Subject (ZB): | |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2023-02206 in citations.
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. |