Vibronic order and emergent magnetism in cubic $d^1$ double perovskites

Abstract

The synergistic interplay of different interactions in materials leads to the emergence of novel quantum phenomena. Spin-orbit and vibronic couplings usually counteract each other, however, in cubic $d^1$ double perovskites they coexist and give rise to spin-orbit-lattice entanglement with unquenched dynamic Jahn-Teller effect on the metal sites. The correlation of these entangled states induced by intersite interactions was not assessed so far. Here, we investigate the joint cooperative effect of spin-orbit and vibronic interactions on the formation of the ordered phases in $d^1$ double perovskites. We found that the magnetic ordered states in these systems coexist with a dynamic vibronic order characterized by the ordering of vibronic quadrupole moments on sites. This treatment allows the rationalization of a number of unexplained features of experimentally investigated phases.

References in corpus (12)

• Ferromagnetism in the Mott insulator Ba2NaOsO6
• Novel Magnetism and Local Symmetry Breaking in a Mott Insulator with Strong Spin Orbit Interactions
• Detection of multipolar orders in the spin-orbit-entangled 5d Mott insulator Ba2MgReO6
• Successive Symmetry Breaking in a Jeff = 3/2 Quartet in the Spin-Orbit Coupled Insulator Ba2MgReO6
• Covalency and vibronic couplings make a nonmagnetic j=3/2 ion magnetic
• Phase Diagram of Ba${}_2$NaOsO${}_6$, a Mott insulator with strong spin orbit interactions
• Phase transition preceding magnetic long-range order in the double perovskite Ba2NaOsO6
• Phase transition in the 5d1 double perovskite Ba2CaReO6 induced by high magnetic field
• Possible quadrupole order in tetragonal Ba2CdReO6 and chemical trend in the ground states of 5d1 double perovskites
• Quadrupole Orders on the fcc Lattice
• Valence bond glass state in the 4$d^1$ fcc antiferromagnet Ba${}_2$LuMoO${}_6$
• Interplay between quadrupolar and magnetic interactions in 5$d^1$ double perovskite Ba${}_2$MgReO${}_6$ under pressure

Cited by in corpus (10)

• Dynamic Jahn-Teller effect in the strong spin-orbit coupling regime
• Spin-orbit-lattice entangled state in A${}_2$MgReO${}_6$ (A = Ca, Sr, Ba) revealed by resonant inelastic X-ray scattering
• The origin of magnetism in a supposedly nonmagnetic osmium oxide
• Hidden orders in spin-orbit entangled correlated insulators
• Interplay of superexchange and vibronic effects in the hidden order of Ba${}_2$MgReO${}_6$ from first principles
• Dynamic Jahn-Teller Phenomena in Heavy Transition Metal Compounds
• Persistent quantum vibronic dynamics in a $5d^1$ double perovskite oxide
• Dipolar and quadrupolar correlations in the $5d^2$ Re-based double perovskites Ba${}_2$YReO${}_6$ and Ba${}_2$ScReO${}_6$
• Coupled-cluster approach to vibronic effects in resonant inelastic x-ray scattering of quantum materials: Application to a $5d^1$ rhenium oxide
• Polaron-driven switching of octupolar order in doped 5d${}^2$ double perovskite