| Autor: |
Zheng, Jia-Cheng, Cui, Yi, Li, Tian-Run, Ran, Ke-Jing, Wen, Jinsheng, Yu, Weiqiang |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Science China Physics, Mechanics & Astronomy 61, 057021 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1007/s11433-017-9166-1 |
| Popis: |
$\alpha$-RuCl$_3$ is a Mott insulator with a honeycomb lattice with strong spin-orbit coupling. We report dielectric measurements on $\alpha$-RuCl$_3$ single crystals under field. At zero field, the dielectric constant, $\epsilon$, drops rapidly when cooled through the magnetic transition temperature T$_N$. With increasing field, the onset of the drop in $\epsilon$ tracks the T$_N$. Such behavior is absent with field above a critical value H$_c$ ~ 7.5 T, indicating the onset of a quantum phase transition. Our data suggest that the dielectric constant can be used as a probe of magnetic ordering in $\alpha$-RuCl$_3$, and $\alpha$-RuCl$_3$ is a possible type-II multiferroics. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
