Ordering of Spin-Orbit-Lattice Entangled States in 5d1 Double Perovskites

Explore the intricacies of spin-orbit-lattice entangled states in 5d1 double perovskites through this 17-minute conference talk. Delve into the various ordered phases exhibited by cubic 5d1 double perovskites, focusing on the canted antiferromagnetic phase found in Ba2NaOsO6 and Ba2MgReO6. Examine the limitations of spin-orbit exchange theory in explaining all observed ordered phases, particularly in Cs2TaCl6 and Ba2MgReO6. Discover how spin-orbit-lattice entanglement, driven by spin-orbit and electron-phonon couplings, resolves puzzling ordered phases in Ta and Re compounds. Learn about the theoretical analysis of Re L3-edge and O K-edge RIXS spectra, confirming the presence of spin-orbit-lattice entangled states in Re compounds. Gain insights into the theory of spin-orbit-lattice entangled states in 5d1 double perovskites and their impact on understanding complex quantum magnetism.