Correlated electronic structure of the alternating monolayer-bilayer nickelate La$_{5}$Ni$_{3}$O$_{11}$
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918453513814016 |
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| author | LaBollita, Harrison Botana, Antia S. |
| author_facet | LaBollita, Harrison Botana, Antia S. |
| contents | The recent discovery of superconductivity under pressure in Ruddlesden-Popper (RP) nickelates has attracted a great deal of attention. Here, using charge-self consistent density-functional theory plus dynamical mean-field theory, we study the correlated electronic structure of the latest superconducting member of the family: the alternating single-layer bilayer nickelate La$_{5}$Ni$_{3}$O$_{11}$. Due to its alternating single-layer and bilayer structural motif, this hybrid RP nickelate exhibits layer-selective physics with the single-layer neighboring a Mott instability, rendering the bilayer the dominant contributor to its low-energy physics, both at ambient and high pressure. The electronic structure of La$_{5}$Ni$_{3}$O$_{11}$ ultimately resembles that of the bilayer compound La$_{3}$Ni$_{2}$O$_{7}$, pointing to the presence of universal features in the family of superconducting RP nickelates. Thus, La$_{5}$Ni$_{3}$O$_{11}$ provides a new platform to disentangle the key degrees of freedom underlying superconductivity in pressurized RP nickelates, underscoring the central role of the bilayer structural motif. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_07394 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Correlated electronic structure of the alternating monolayer-bilayer nickelate La$_{5}$Ni$_{3}$O$_{11}$ LaBollita, Harrison Botana, Antia S. Strongly Correlated Electrons The recent discovery of superconductivity under pressure in Ruddlesden-Popper (RP) nickelates has attracted a great deal of attention. Here, using charge-self consistent density-functional theory plus dynamical mean-field theory, we study the correlated electronic structure of the latest superconducting member of the family: the alternating single-layer bilayer nickelate La$_{5}$Ni$_{3}$O$_{11}$. Due to its alternating single-layer and bilayer structural motif, this hybrid RP nickelate exhibits layer-selective physics with the single-layer neighboring a Mott instability, rendering the bilayer the dominant contributor to its low-energy physics, both at ambient and high pressure. The electronic structure of La$_{5}$Ni$_{3}$O$_{11}$ ultimately resembles that of the bilayer compound La$_{3}$Ni$_{2}$O$_{7}$, pointing to the presence of universal features in the family of superconducting RP nickelates. Thus, La$_{5}$Ni$_{3}$O$_{11}$ provides a new platform to disentangle the key degrees of freedom underlying superconductivity in pressurized RP nickelates, underscoring the central role of the bilayer structural motif. |
| title | Correlated electronic structure of the alternating monolayer-bilayer nickelate La$_{5}$Ni$_{3}$O$_{11}$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2505.07394 |