Competing magnetic orders in quantum critical Sr${}_3$Ru${}_2$O${}_7$

Abstract

We investigated Sr${}_3$Ru${}_2$O${}_7$, a quantum critical metal that shows a metamagnetic quantum phase transition and electronic nematicity, through density functional calculations. These predict a ferromagnetic ground state in contrast to the experimentally observed paramagnetism, raising the question of competing magnetic states and associated fluctuations that may suppress magnetic order. We did a search to identify such low energy antiferromagnetically ordered metastable states. We find that the lowest energy antiferromagnetic state has a striped order. This corresponds to the E-type order that has been shown to be induced by Mn alloying. We also note significant transport anisotropy in this E-type ordered state. These results are discussed in relation to experimental observations.

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Cited by in corpus (6)

• Compass-like manipulation of electronic nematicity in Sr${}_3$Ru${}_2$O${}_7$
• Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition
• Electronic Structure and Magnetism of the Triple-layered Ruthenate Sr${}_4$Ru${}_3$O${}_{10}$
• Ferromagnetic state with large magnetic moments realized in epitaxially strained Sr3Ru2O7 films
• The effect of pressure in the crystal and magnetic structure of FeWO4
• Layer-dependent spin-resolved electronic structure of ferromagnetic triple-layered ruthenate Sr${}_4$Ru${}_3$O${}_{10}$