Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.12635 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908492899549184 |
|---|---|
| author | Tago, Mizuki Kurachi, Tsukasa Makino, Takayuki |
| author_facet | Tago, Mizuki Kurachi, Tsukasa Makino, Takayuki |
| contents | To realize the significant potential of optical materials such as strongly electron-correlated open-shell rare-earth monoxides, understanding the electron-localization Hubbard parameters ($U$) is of central importance. The Hubbard energy is believed to be material specific and constant. However, it has recently been pointed out that even subtle structural changes can induce changes in $U$ parameters. For LuO, we theoretically evaluated $U$ energy dependence of the differential transmission and reflectivity spectra to assess the impact of $U$ energy on the optical properties. In addition to the conventional derivative-like contribution, we observed the influence of the Drude tail owing to $U$-induced plasma energy modulation. Given the typical detection sensitivity of differential spectroscopy ($\sim 1 \times 10^{-4}$), even a few meV modulations in $U$ are sufficient for a detectable spectral response. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_12635 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hubbard energy dependence of electronic structures in rare-earth monoxides Tago, Mizuki Kurachi, Tsukasa Makino, Takayuki Materials Science Applied Physics To realize the significant potential of optical materials such as strongly electron-correlated open-shell rare-earth monoxides, understanding the electron-localization Hubbard parameters ($U$) is of central importance. The Hubbard energy is believed to be material specific and constant. However, it has recently been pointed out that even subtle structural changes can induce changes in $U$ parameters. For LuO, we theoretically evaluated $U$ energy dependence of the differential transmission and reflectivity spectra to assess the impact of $U$ energy on the optical properties. In addition to the conventional derivative-like contribution, we observed the influence of the Drude tail owing to $U$-induced plasma energy modulation. Given the typical detection sensitivity of differential spectroscopy ($\sim 1 \times 10^{-4}$), even a few meV modulations in $U$ are sufficient for a detectable spectral response. |
| title | Hubbard energy dependence of electronic structures in rare-earth monoxides |
| topic | Materials Science Applied Physics |
| url | https://arxiv.org/abs/2508.12635 |