Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2023
|
| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2310.16623 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866910365245243392 |
|---|---|
| author | Yazdani-Hamid, Meghdad Biderang, Mehdi Akbari, Alireza |
| author_facet | Yazdani-Hamid, Meghdad Biderang, Mehdi Akbari, Alireza |
| contents | We undertake a theoretical analysis to probe the Kerr spectrum within the superconducting phase of strontium ruthenate, where the Kerr rotation experiments demonstrate the existence of a superconducting state with broken time reversal symmetry. We find that spin-orbit coupling changes the hybridization along the Fermi surface's diagonal zone mainly affects Hall transport. We show that the dominant Hall response arises mainly from the quasi-1D orbitals $d_{yz}$ and $d_{xz}$, linked to their hybridization, while other contributions are negligible. This establishes that, the breaking of time reversal symmetry of quasi-1D orbitals can account for the existence of the Kerr angle, irrespective of the order symmetry specific to the $d_{xy}$ orbital. Moreover, the optical Hall conductivity and Kerr angle estimated for the hypothesised superconducting orders also closely match the experimental findings, providing important novel insight on the role of the spin-orbit coupling, hybridization, and emergent order. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_16623 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Polar Kerr Effect in Multiband Spin-Orbit Coupled Superconductors Yazdani-Hamid, Meghdad Biderang, Mehdi Akbari, Alireza Superconductivity We undertake a theoretical analysis to probe the Kerr spectrum within the superconducting phase of strontium ruthenate, where the Kerr rotation experiments demonstrate the existence of a superconducting state with broken time reversal symmetry. We find that spin-orbit coupling changes the hybridization along the Fermi surface's diagonal zone mainly affects Hall transport. We show that the dominant Hall response arises mainly from the quasi-1D orbitals $d_{yz}$ and $d_{xz}$, linked to their hybridization, while other contributions are negligible. This establishes that, the breaking of time reversal symmetry of quasi-1D orbitals can account for the existence of the Kerr angle, irrespective of the order symmetry specific to the $d_{xy}$ orbital. Moreover, the optical Hall conductivity and Kerr angle estimated for the hypothesised superconducting orders also closely match the experimental findings, providing important novel insight on the role of the spin-orbit coupling, hybridization, and emergent order. |
| title | Polar Kerr Effect in Multiband Spin-Orbit Coupled Superconductors |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2310.16623 |