# Fermiology and electron dynamics of trilayer nickelate La4Ni3O10

Article · Haoxiang Li, Xiaoqing Zhou, Thomas Nummy, Junjie Zhang, Víctor Pardo, Warren E. Pickett, John F. Mitchell, D. S. Dessau

- Archive id: doi:10.1038/s41467-017-00777-0
- Published: 2017-09-20
- Venue: Nature Communications
- DOI: https://doi.org/10.1038/s41467-017-00777-0
- PMID: 28951567
- Citations: 99
- Source URL: https://doi.org/10.1038/s41467-017-00777-0
- PDF: https://www.nature.com/articles/s41467-017-00777-0.pdf
- Provenance: openalex

## Abstract

Abstract Layered nickelates have the potential for exotic physics similar to high T C superconducting cuprates as they have similar crystal structures and these transition metals are neighbors in the periodic table. Here we present an angle-resolved photoemission spectroscopy (ARPES) study of the trilayer nickelate La 4 Ni 3 O 10 revealing its electronic structure and correlations, finding strong resemblances to the cuprates as well as a few key differences. We find a large hole Fermi surface that closely resembles the Fermi surface of optimally hole-doped cuprates, including its $$d\_{x^2-y^2}$$ d x 2 - y 2 orbital character, hole filling level, and strength of electronic correlations. However, in contrast to cuprates, La 4 Ni 3 O 10 has no pseudogap in the $$d\_{x^2-y^2}$$ d x 2 - y 2 band, while it has an extra band of principally $$d\_{3z^2-r^2}$$ d 3 z 2 - r 2 orbital character, which presents a low temperature energy gap. These aspects drive the nickelate physics, with the differences from the cuprate electronic structure potentially shedding light on the origin of superconductivity in the cuprates.

_Abstract reproduced under CC-BY (publisher license, via OpenAlex)._

Topics: [Nickelate & Iron-Based Superconductors](https://space-kitty.com/topics/nickelates-iron-based)

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