Teguh Citra Asmara

Oct 16, 2024 | nature.com | Wenliang Zhang |Teguh Citra Asmara |Yi Tseng |Yimin Xiong |Kurt Kummer |Vladimir N. Strocov | +2 more

AbstractHoneycomb and kagome lattices can host propagating excitations with non-trivial topology as defined by their evolution along closed paths in momentum space. Excitations on such lattices can also be momentum-independent, and the associated flat bands are of interest due to strong interactions between heavy quasiparticles.

Jun 12, 2023 | nature.com | Yi Tseng |Eugenio Paris |Wenliang Zhang |Teguh Citra Asmara |Vladimir N. Strocov |Henrik M. Rønnow | +1 more

AbstractStudying multi-particle elementary excitations has provided unique access to understand collective many-body phenomena in correlated electronic materials, paving the way towards constructing microscopic models. In this work, we perform O K-edge resonant inelastic X-ray scattering (RIXS) on the quasi-one-dimensional cuprate {{{{{{\rm{Sr}}}}}}}_{14}{{{{{{\rm{Cu}}}}}}}_{24}{{{{{{\rm{O}}}}}}}_{41} with weakly-doped spin ladders.