| Autor: |
Watson, Matthew D., Haghighirad, Amir A., Takita, Hitoshi, Mansur, Wumiti, Iwasawa, Hideaki, Schwier, Eike F., Ino, Akihiro, Hoesch, Moritz |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
J. Phys. Soc. Jpn. 86, 053703 (2017) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.7566/JPSJ.86.053703 |
| Popis: |
We report a high-resolution laser-based angle-resolved photoemission spectroscopy (laser-ARPES) study of single crystals of FeSe, focusing on the temperature-dependence of the hole-like bands around the ${\rm \Gamma}$ point. As the system cools through the tetragonal-orthorhombic "nematic" structural transition at 90~K, the splitting of the $d_{xz}$/$d_{yz}$ bands is observed to increase by a magnitude of 13 meV. Moreover, the onset of a $\sim$10 meV downward shift of the $d_{xy}$ band is also at 90~K. These measurements provide clarity on the nature, magnitude and temperature-dependence of the band shifts at the ${\rm \Gamma}$ point in the nematic phase of FeSe. |
| Databáze: |
arXiv |
| Externí odkaz: |
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