Journal Article

FZJ-2019-04661

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Interplay of Electronic and Spin Degrees in Ferromagnetic SrRuO 3 : Anomalous Softening of the Magnon Gap and Stiffness

Jenni, K. ; Kunkemöller, S. ; Brüning, D. ; Lorenz, T.Extern* ; Sidis, Y. ; Schneidewind, A.FZJ* ; Nugroho, A. A. ; Rosch, A.Extern* ; Khomskii, D. I. ; Braden, M. (Corresponding author)

2019
APS College Park, Md.

This record in other databases:    

Please use a persistent id in citations: http://hdl.handle.net/2128/23080  doi:10.1103/PhysRevLett.123.017202

Abstract: The magnon dispersion of ferromagnetic SrRuO3 was studied by inelastic neutron scattering experiments on single crystals as a function of temperature. Even at low temperature the magnon modes exhibit substantial broadening pointing to strong interaction with charge carriers. We find an anomalous temperature dependence of both the magnon gap and the magnon stiffness, which soften upon cooling in the ferromagnetic phase. Both effects trace the temperature dependence of the anomalous Hall effect and can be attributed to the impact of Weyl points, which results in the same relative renormalization in the spin stiffness and magnon gap.

Keyword(s): Magnetic Materials (1st) ; Magnetism (2nd)

---

Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)

Experiment(s):

1. PANDA: Cold three axes spectrometer (SR2)

Appears in the scientific report 2019

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

---