In situ anion-doped epitaxial strontium titanate films

0538768 - FZÚ 2021 RIV GB eng J - Článek v odborném periodiku
Tyunina, Marina - Pacherová, Oliva - Nepomniashchaia, Natalia - Vetokhina, Volha - Cichoň, Stanislav - Kocourek, Tomáš - Dejneka, Alexandr
In situ anion-doped epitaxial strontium titanate films.
Physical Chemistry Chemical Physics. Roč. 22, č. 42 (2020), s. 24796-24800. ISSN 1463-9076. E-ISSN 1463-9084
Grant CEP: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA19-09671S
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: anion-doped * in - situ * epitaxial * strontium titanate films
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.676, rok: 2020
Způsob publikování: Open access

Misfit strains arising from a film–substrate mismatch can induce novel phases and properties in the epitaxial films of perovskite oxides. Here we employ yet another effect, namely, strain-assisted formation of oxygen vacancies. We demonstrate the misfit-promoted presence of oxygen vacancies and related substitutional incorporation of anion dopants in the epitaxial films of archetypal perovskite oxide SrTiO3. Both the oxygen vacancies and hydrogen or nitrogen dopants are introduced in situ during the pulsed-laser deposition of the films using compressive substrates. The films exhibit peculiar chemical expansion and optical properties, which are consistent with substitutional anion doping.

Trvalý link: http://hdl.handle.net/11104/0316500