Interplay between quadrupolar and magnetic interactions in 5$d^1$ double perovskite Ba${}_2$MgReO${}_6$ under pressure

Abstract

We measured the electrical resistivity, AC magnetic susceptibility, and specific heat of the cubic double perovskite Ba${}_2$MgReO${}_6$ under pressure. The application of pressure leads to a gradual increase in the transition temperature to the canted antiferromagnetic order, while the quadrupolar order is suppressed above 5 GPa, at which a collinear antiferromagnetic state appears. The obtained unit cell volume-temperature phase diagram for the compound as well as the related compounds suggests that Ba${}_2$MgReO${}_6$ exists near the phase boundary between the noncollinear and the collinear antiferromagnetic order with multipole decrees of freedom.

4 pages, 4 figures

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Cited by in corpus (9)

• Vibronic order and emergent magnetism in cubic $d^1$ double perovskites
• 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
• Quadrupole partial orders and triple-$q$ states on the face-centered cubic lattice
• Dynamic Jahn-Teller Phenomena in Heavy Transition Metal Compounds
• Fate of multipolar physics in $5d^2$ double perovskites
• Chemical Pressure Tuning of Multipolar and Magnetic Orders in Ba${}_2$(Cd${}_{1-x}$Ca${}_x$)ReO${}_6$ Double Perovskites
• Dipolar and quadrupolar correlations in the $5d^2$ Re-based double perovskites Ba${}_2$YReO${}_6$ and Ba${}_2$ScReO${}_6$
• Intersite Coulomb repulsion driven quadrupole instability and magnetic ordering in the orbital frustrated Ba${}_2$MgReO${}_6$