| Autor: |
Zhou, Boyi, Wang, Yiping, Osterhoudt, Gavin B., Kelly, Paige, Mandrus, David, He, Rui, Burch, Kenneth S., Henriksen, Erik A. |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Journal of Physics and Chemistry of Solids 128, 291 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.jpcs.2018.01.026 |
| Popis: |
We present initial Raman spectroscopy experiments on exfoliated flakes of $\alpha$-RuCl$_3$, from tens of nm thick down to single layers. Besides unexpectedly finding this material to be air stable, in the thinnest layers we observe the appearance with decreasing temperature of a symmetry-forbidden mode in crossed polarization, along with an anomalous broadening of a mode at 164 cm$^{-1}$ that is known to couple to a continuum of magnetic excitations. This may be due to an enhancement of magnetic fluctuations and evidence for a distorted honeycomb lattice in single- and bi-layer samples. |
| Databáze: |
arXiv |
| Externí odkaz: |
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