Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition

Abstract

The phenomenology and radical changes seen in materials properties traversing a quantum phase transition has captivated condensed matter research over past decades. Strong electronic correlations lead to novel electronic ground states, including magnetic order, nematicity and unconventional superconductivity. Providing a microscopic model for these requires detailed knowledge of the electronic structure in the vicinity of the Fermi energy, promising a complete understanding of the physics of the quantum critical point. Here, we demonstrate such a measurement at the surface of Sr${}_3$Ru${}_2$O${}_7$. Our results show that, even in zero field, the electronic structure is strongly $C_2$ symmetric and that a magnetic-field drives both a Lifshitz transition and induces a charge-stripe order. We track the changes of the electronic structure as a function of field via quasi-particle interference imaging at ultralow temperatures. Our results provide a complete microscopic picture of the field-induced changes of the electronic structure across the Lifshitz transition.

replaced with published version. 8 pages, 4 figures, without supplementary (can be downloaded here: https://www.science.org/doi/suppl/10.1126/sciadv.abo7757/suppl_file/sciadv.abo7757_sm.pdf)

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Cited by in corpus (6)

• On the engineering of higher-order Van Hove singularities in two dimensions
• Compass-like manipulation of electronic nematicity in Sr${}_3$Ru${}_2$O${}_7$
• Design and performance of an ultrahigh vacuum spectroscopic-imaging scanning tunneling microscope with a hybrid vibration isolation system
• Spin-orbit coupling induced Van Hove singularity in proximity to a Lifshitz transition in Sr${}_4$Ru${}_3$O${}_{10}$
• Lifshitz transition enabling superconducting dome around the quantum critical point in TiSe${}_2$
• Nature of field-induced transitions and hysteretic magnetoresistance in non-collinear antiferromagnet EuIn2As2