%0 Journal Article
%A Suzuki, Hakuto
%T Resonant Inelastic X-ray Scattering Studies of Magnetic Excitations in Ru-Based Quantum Magnets
%J Nihon-butsuri-gakkai-shi
%V 79
%N 5
%@ 0029-0181
%C T¯oky¯o
%I Nihon Butsuri Gakkai
%M PUBDB-2024-01815
%P 230 - 235
%D 2024
%Z The copyright does not allow us to make the post-referee version open tothe public.Best regards,Hakuto Suzuki
%X Ruthenium compounds have served as a playground for fundamental concepts in modern condensed matter physics, encompassing unconventional superconductivity, Kitaev spin liquids, and solid-state analogues of the Higgs mode in particle physics. Quantitative description of these exotic phenomena requires experimental information on the interaction strengths among the 4d electrons. Our development of a new resonant inelastic X-ray scattering (RIXS) instrument dedicated to the tender X-ray regime (2–5 keV) allows systematic investigation of magnetic excitations in 4d transition metal compounds. The single magnon dispersion of a high-temperature antiferromagnet SrRu2O6 demonstrates the critical role of spin–orbit coupling in stabilizing the antiferromagnetic order. The magnetic excitation spectra of a Kitaev spin liquid candidate α-RuCl3 points to the dominance of bond-dependent Kitaev interactions. Our results exemplify the capability of state-of-the-art RIXS experiments combined with many-body theory calculations in providing insight into exotic magnetism in prominent model compounds.
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.11316/butsuri.79.5_230
%U https://bib-pubdb1.desy.de/record/607205