Direct comparison of ARPES, STM, and quantum oscillation data for band structure determination in Sr2RhO4

Discrepancies in the low-energy quasiparticle dispersion extracted from angle-resolved photoemission, scanning tunneling spectroscopy, and quantum oscillation data are common and have long haunted the field of quantum matter physics. Here, we directly test the consistency of results from these three...

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Bibliographic Details
Published in:npj quantum materials 2020-12, Vol.5 (1), p.1-8, Article 91
Main Authors: Battisti, I., Tromp, W. O., Riccò, S., Perry, R. S., Mackenzie, A. P., Tamai, A., Baumberger, F., Allan, M. P.
Format: Article
Language:English
Subjects:
639/766/119/995
639/766/119/999
Condensed Matter Physics
Cuprates
Electron states
Elementary excitations
Fermi liquids
Fermi surfaces
Photoelectric emission
Physics
Physics and Astronomy
Quantum Physics
Structural Materials
Surfaces and Interfaces
Thin Films
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Summary:Discrepancies in the low-energy quasiparticle dispersion extracted from angle-resolved photoemission, scanning tunneling spectroscopy, and quantum oscillation data are common and have long haunted the field of quantum matter physics. Here, we directly test the consistency of results from these three techniques by comparing data from the correlated metal Sr 2 RhO 4 . Using established schemes for the interpretation of the experimental data, we find good agreement for the Fermi surface topography and carrier effective masses. Hence, the apparent absence of such an agreement in other quantum materials, including the cuprates, suggests that the electronic states in these materials are of different, non-Fermi liquid-like nature. Finally, we discuss the potential and challenges in extracting carrier lifetimes from photoemission and quasiparticle interference data.
ISSN:2397-4648
2397-4648
DOI:10.1038/s41535-020-00292-4