TY  - JOUR
AU  - Muff, Steffan
AU  - Fanciulli, Mauro
AU  - Weber, Andrew P.
AU  - Pilet, Nicolas
AU  - Ristić, Zoran
AU  - Wang, Zhiming
AU  - Plumb, Nicholas C.
AU  - Radović, Milan
AU  - Dil, J. Hugo
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7194
AB  - The two-dimensional electron gas at the surface of titanates gathered attention due to its potential to replace conventional silicon based semiconductors in the future. In this study, we investigated films of the parent perovskite CaTiO3, grown by pulsed laser deposition, by means of angular-resolved photoelectron spectroscopy. The films show a c(4 x 2) surface reconstruction after the growth that is reduced to a p(2 x 2) reconstruction under UV-light. At the CaTiO3 film surface, a two-dimensional electron gas (2DEG) is found with an occupied band width of 400 meV. With our findings CaTiO3 is added to the group of oxides witha 2DEG at their surface. Our study widens the phase space to investigate strontium and barium doped CaTiO3 and the interplay of ferroelectric properties with the 2DEG at oxide surfaces. This could open up new paths to tailor two-dimensional transport properties of these systems towards possible applications. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Observation of a two-dimensional electron gas at CaTiO3 film surfaces
VL  - 432
SP  - 41
EP  - 45
DO  - 10.1016/j.apsusc.2017.05.229
ER  - 

@article{
author = "Muff, Steffan and Fanciulli, Mauro and Weber, Andrew P. and Pilet, Nicolas and Ristić, Zoran and Wang, Zhiming and Plumb, Nicholas C. and Radović, Milan and Dil, J. Hugo",
year = "2018",
abstract = "The two-dimensional electron gas at the surface of titanates gathered attention due to its potential to replace conventional silicon based semiconductors in the future. In this study, we investigated films of the parent perovskite CaTiO3, grown by pulsed laser deposition, by means of angular-resolved photoelectron spectroscopy. The films show a c(4 x 2) surface reconstruction after the growth that is reduced to a p(2 x 2) reconstruction under UV-light. At the CaTiO3 film surface, a two-dimensional electron gas (2DEG) is found with an occupied band width of 400 meV. With our findings CaTiO3 is added to the group of oxides witha 2DEG at their surface. Our study widens the phase space to investigate strontium and barium doped CaTiO3 and the interplay of ferroelectric properties with the 2DEG at oxide surfaces. This could open up new paths to tailor two-dimensional transport properties of these systems towards possible applications. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Observation of a two-dimensional electron gas at CaTiO3 film surfaces",
volume = "432",
pages = "41-45",
doi = "10.1016/j.apsusc.2017.05.229"
}

Muff, S., Fanciulli, M., Weber, A. P., Pilet, N., Ristić, Z., Wang, Z., Plumb, N. C., Radović, M.,& Dil, J. H.. (2018). Observation of a two-dimensional electron gas at CaTiO3 film surfaces. in Applied Surface Science, 432, 41-45.
https://doi.org/10.1016/j.apsusc.2017.05.229

Muff S, Fanciulli M, Weber AP, Pilet N, Ristić Z, Wang Z, Plumb NC, Radović M, Dil JH. Observation of a two-dimensional electron gas at CaTiO3 film surfaces. in Applied Surface Science. 2018;432:41-45.
doi:10.1016/j.apsusc.2017.05.229 .

Muff, Steffan, Fanciulli, Mauro, Weber, Andrew P., Pilet, Nicolas, Ristić, Zoran, Wang, Zhiming, Plumb, Nicholas C., Radović, Milan, Dil, J. Hugo, "Observation of a two-dimensional electron gas at CaTiO3 film surfaces" in Applied Surface Science, 432 (2018):41-45,
https://doi.org/10.1016/j.apsusc.2017.05.229 . .