Electronic layer decoupling driven by density-wave order in La$_4$Ni$_3$O$_{10}$
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2026
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| author | Guan, Ziqiang TenHuisen, Sophia F. R. Tepie, M. Zhao, Yifeng Day-Roberts, Ezra LaBollita, Harrison Young, Alexander M. Cui, Xiaomeng Chen, Xinglong Glerean, Filippo Guia, Carl A. Dean, Mark P. M. Kim, Philip Mitchell, J. F. Botana, Antia S. Homes, Christopher C. Mitrano, Matteo |
| author_facet | Guan, Ziqiang TenHuisen, Sophia F. R. Tepie, M. Zhao, Yifeng Day-Roberts, Ezra LaBollita, Harrison Young, Alexander M. Cui, Xiaomeng Chen, Xinglong Glerean, Filippo Guia, Carl A. Dean, Mark P. M. Kim, Philip Mitchell, J. F. Botana, Antia S. Homes, Christopher C. Mitrano, Matteo |
| contents | We probe the density-wave transition of the trilayer nickelate La$_4$Ni$_3$O$_{10}$ with polarization-resolved infrared spectroscopy. The low-energy electrodynamics is strongly anisotropic, with metallic in-plane and insulating out-of-plane character. In the ordered phase, the anisotropy grows more than an order of magnitude as the out-of-plane conductivity is sharply suppressed. We interpret this enhancement as an effective electronic decoupling of the Ni-O layers, driven by a spin-density-wave-induced redistribution of Ni-$d_{z^2}$ occupation within the trilayers. This electronic response is accompanied by clear shifts and splittings of the out-of-plane phonons, compatible with a density-wave instability of electronic origin. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_08997 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Electronic layer decoupling driven by density-wave order in La$_4$Ni$_3$O$_{10}$ Guan, Ziqiang TenHuisen, Sophia F. R. Tepie, M. Zhao, Yifeng Day-Roberts, Ezra LaBollita, Harrison Young, Alexander M. Cui, Xiaomeng Chen, Xinglong Glerean, Filippo Guia, Carl A. Dean, Mark P. M. Kim, Philip Mitchell, J. F. Botana, Antia S. Homes, Christopher C. Mitrano, Matteo Strongly Correlated Electrons Materials Science Superconductivity We probe the density-wave transition of the trilayer nickelate La$_4$Ni$_3$O$_{10}$ with polarization-resolved infrared spectroscopy. The low-energy electrodynamics is strongly anisotropic, with metallic in-plane and insulating out-of-plane character. In the ordered phase, the anisotropy grows more than an order of magnitude as the out-of-plane conductivity is sharply suppressed. We interpret this enhancement as an effective electronic decoupling of the Ni-O layers, driven by a spin-density-wave-induced redistribution of Ni-$d_{z^2}$ occupation within the trilayers. This electronic response is accompanied by clear shifts and splittings of the out-of-plane phonons, compatible with a density-wave instability of electronic origin. |
| title | Electronic layer decoupling driven by density-wave order in La$_4$Ni$_3$O$_{10}$ |
| topic | Strongly Correlated Electrons Materials Science Superconductivity |
| url | https://arxiv.org/abs/2601.08997 |