Band Oscillation Correlated with Tc for Superconductors
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866916519871512576 |
|---|---|
| author | Song, Zhigang Li, Xin |
| author_facet | Song, Zhigang Li, Xin |
| contents | Previous theoretical studies on superconductivity were focused on the static states and adiabatic processes. Quantum mechanics simulations of time-dependent processes in superconductors were rarely performed previously. Here we use real-time time-dependent density functional theory to show a new phenomenon that the electron-phonon excitation is coherent and mode-selective, resulting in a periodic band oscillation. Surprisingly, the predicted oscillation frequency of charges or bands here are strongly correlated with a broad range of superconductivity transition temperatures of various main families of superconductors, including cuprates, Fe-based, hydrides, and WTe2. This shed light on the pairing mechanism in unconventional superconductors, paving the way for the design of higher temperature superconductors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_09098 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Band Oscillation Correlated with Tc for Superconductors Song, Zhigang Li, Xin Superconductivity Previous theoretical studies on superconductivity were focused on the static states and adiabatic processes. Quantum mechanics simulations of time-dependent processes in superconductors were rarely performed previously. Here we use real-time time-dependent density functional theory to show a new phenomenon that the electron-phonon excitation is coherent and mode-selective, resulting in a periodic band oscillation. Surprisingly, the predicted oscillation frequency of charges or bands here are strongly correlated with a broad range of superconductivity transition temperatures of various main families of superconductors, including cuprates, Fe-based, hydrides, and WTe2. This shed light on the pairing mechanism in unconventional superconductors, paving the way for the design of higher temperature superconductors. |
| title | Band Oscillation Correlated with Tc for Superconductors |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2412.09098 |