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Dudy L.♦, Chudziński P., Aulbach J.♦, Rogalev V.♦, Schäfer J.♦, Claessen R.♦, Temperature dependent ARPES of the metallic-like bands in Si(553)-Au,
Surface Science, ISSN: 0039-6028, DOI: 10.1016/j.susc.2023.122356, Vol.737, No.122356, pp.1-7, 2023 Streszczenie:
We conducted a thorough investigation into the temperature dependence of the metallic-like bands of Si(553)-Au using angular-resolved photoemission spectroscopy (ARPES). Our study addresses the challenges posed by the short-term stability of the surface and photo-voltage effects, which we overcame to extract changes in the band-filling and Fermi-velocity. Our findings shed light on the low-temperature phase of the step edge in Si(553)-Au, which has been a topic of ongoing debate regarding its structural or electronic nature. Through comparison with theoretical predictions of a structural-related low-temperature to high-temperature phase transition, we discovered that the band-filling and Fermi-velocity do not change accordingly, thereby ruling out this scenario. Our study contributes to a better understanding of this material system and provides an important reference for future research. Afiliacje autorów:
| Dudy L. | - | inna afiliacja | | Chudziński P. | - | IPPT PAN | | Aulbach J. | - | inna afiliacja | | Rogalev V. | - | inna afiliacja | | Schäfer J. | - | inna afiliacja | | Claessen R. | - | inna afiliacja |
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