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cond-mat.str-el2023★ 3 cited
Theoretical analysis of multi-magnon excitations in resonant inelastic x-ray scattering spectra of two-dimensional antiferromagnets
Subhajyoti Pal, Umesh Kumar, Prabhakar +1
Resonant inelastic x-ray spectroscopy (RIXS) has emerged as an important tool to explore magnetism in two-dimensional (2D) antiferromagnet realized in strongly correlated materials…
cond-mat.str-el2020★ 18 cited
Three-body bound states in antiferromagnetic spin ladders
Gary Schmiedinghoff, Leanna Müller, Umesh Kumar +2
Stable bound quantum states are ubiquitous in nature. Mostly, they result from the interaction of only pairs of particles, so called two-body interactions, even when large complex…