Abstract:
The medium-energy ion scattering (MEIS) spectroscopy was used to obtain the data on the structure and stoichiometry of interfaces in LaAlO3/(001)SrTiO3 (LAO/STO) heterostructures. The coverage of the LAO/STO heterostructure with a LAO film increased by a factor of almost two as the lanthanum aluminate layer thickness increased from 1 to 6 unit cells. It is shown that the formation of the heterostructure is accompanied by the interchange with Sr ions of the substrate and La ions of the firm. The influence of the oxygen pressure on the formation of the heterostructure has been studied. The conditions required to form nanodimentional interlayer of a quasi-two-dimensional electron gas with high mobility of electrons in the interface region are analyzed.
Citation:
Yu. A. Boikov, I. T. Serenkov, V. I. Sakharov, V. A. Danilov, “Influence of mechanical stresses on the charge state of the interface in the LaAlO3/(001)SrTiO3 heterostructures with a distorted stoichiometry”, Fizika Tverdogo Tela, 60:1 (2018), 171–174; Phys. Solid State, 60:1 (2018), 173–177
\Bibitem{BoiSerSak18}
\by Yu.~A.~Boikov, I.~T.~Serenkov, V.~I.~Sakharov, V.~A.~Danilov
\paper Influence of mechanical stresses on the charge state of the interface in the LaAlO$_{3}$/(001)SrTiO$_{3}$ heterostructures with a distorted stoichiometry
\jour Fizika Tverdogo Tela
\yr 2018
\vol 60
\issue 1
\pages 171--174
\mathnet{http://mi.mathnet.ru/ftt9344}
\crossref{https://doi.org/10.21883/FTT.2018.01.45305.213}
\elib{https://elibrary.ru/item.asp?id=32737396}
\transl
\jour Phys. Solid State
\yr 2018
\vol 60
\issue 1
\pages 173--177
\crossref{https://doi.org/10.1134/S1063783418010067}
Linking options:
https://www.mathnet.ru/eng/ftt9344
https://www.mathnet.ru/eng/ftt/v60/i1/p171
This publication is cited in the following 2 articles:
A. R. Shugurov, A. V. Panin, “Mechanisms of stress generation in thin films and coatings”, Tech. Phys., 65:12 (2020), 1881–1904
Yu. A. Boikov, V. A. Danilov, I. T. Serenkov, V. I. Sakharov, M. P. Volkov, “Electro- and magnetotransport near a LaAlO3/SrTiO3 interphase boundary”, Phys. Solid State, 60:6 (2018), 1235–1238
Citation in format AMSBIB
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