Active participation of “inert” YSZ substrates on interface formation in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si11.svg"><mml:mrow><mml:msub><mml:mtext>Fe</mml:mtext><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mtext>O</mml:mtext><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>/YSZ heterostructures
نویسندگان
چکیده
The bulk and emerging interface properties of magnetite Fe3O4/YSZ(001) heterostructures grown by pulsed laser deposition are investigated. Fe3O4 thin films (4–38 nm) grow epitaxially in (111) orientation undergo a Verwey transition at max. TV = 117±0.6K. Surprisingly, the formation interfacial Fe2O3 phase is observed albeit quasi-inert yttrium-stabilized zirconia (YSZ). Possible mechanisms include either (i) thermodynamically induced redox reaction YSZ substrate surfaces or (ii) oxygen diffusion from outside atmosphere, as very good ion conductor. Hence, substrate-assisted supply may enable control functionalities.
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ژورنال
عنوان ژورنال: Applied surface science advances
سال: 2021
ISSN: ['2666-5239']
DOI: https://doi.org/10.1016/j.apsadv.2021.100132