Matches in SemOpenAlex for { <https://semopenalex.org/work/W1819175736> ?p ?o ?g. }
- W1819175736 abstract "Recent experiments on the Ba$_3$XSb$_2$O$_9$ family have revealed materials that potentially realise spin- and spin-orbital liquid physics. However, the lattice structure of these materials is complicated due to the presence of charged X$^{2+}$-Sb$^{5+}$ dumbbells, with two possible orientations. To model the lattice structure, we consider a frustrated model of charged dumbbells on the triangular lattice, with long-range Coulomb interactions. We study this model using Monte Carlo simulation, and find a freezing temperature, $T_{sf frz}$, at which the simulated structure factor matches well to low-temperature x-ray diffraction data for Ba$_3$CuSb$_2$O$_9$. At $T=T_{sf frz}$ we find a complicated ``branching'' structure of superexchange-linked X$^{2+}$ clusters, and show that this gives a natural explanation for the presence of orphan spins. Finally we provide a plausible mechanism by which such dumbbell disorder can promote a spin-orbital resonant state with delocalised orphan spins." @default.
- W1819175736 created "2016-06-24" @default.
- W1819175736 creator A5043466166 @default.
- W1819175736 creator A5074659127 @default.
- W1819175736 date "2015-10-02" @default.
- W1819175736 modified "2023-10-14" @default.
- W1819175736 title "Disorder-Driven Spin-Orbital Liquid Behavior in theBa3XSb2O9Materials" @default.
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- W1819175736 doi "https://doi.org/10.1103/physrevlett.115.147202" @default.
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