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cond-mat.str-el2026
Excitonic Magnetism in Ruthenium Pyrochlores
Swetlana Swarup, Yang Yang, Natalia B. Perkins
Strong spin-orbit coupling in systems is expected to stabilize a nonmagnetic singlet ground state, yet many ruthenium pyrochlores exhibit robust long-range magnetic ord…
cond-mat.str-el2021
Non-Loudon-Fleury Raman scattering in spin-orbit coupled Mott insulators
Yang Yang, Mengqun Li, Ioannis Rousochatzakis +1
We revisit the theory of magnetic Raman scattering in Mott insulators with strong spin-orbit coupling, with a major focus on Kitaev materials. We show that Kitaev materials with bo…
cond-mat.str-el2020
Quantum-classical crossover in the spin-1/2 Heisenberg-Kitaev kagome magnet
Yang Yang, Natalia B. Perkins, Fulya Koç +2
The spin-1/2 Heisenberg kagome antiferromagnet is one of the paradigmatic playgrounds for frustrated quantum magnetism, with an extensive number of competing resonating valence bon…