BaFe2As2/Fe bilayers with [001]-tilt grain boundary on MgO and SrTiO3 bicrystal substrates

Bernhard Holzapfel; Fritz Kurth; Jens Haenisch; Kazumasa Iida; Ludwig Schulz; Silvia Haindl

arxiv: 1302.6480 · v1 · pith:5W5B2JUSnew · submitted 2013-02-26 · ❄️ cond-mat.supr-con

BaFe2As2/Fe bilayers with [001]-tilt grain boundary on MgO and SrTiO3 bicrystal substrates

Kazumasa Iida , Silvia Haindl , Fritz Kurth , Jens Haenisch , Ludwig Schulz , Bernhard Holzapfel This is my paper

classification ❄️ cond-mat.supr-con

keywords srtio3bicrystalbafe2as2boundarybuffergrainsubstratestilt

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Co-doped BaFe2As2 (Ba-122) can be realized on both MgO and SrTiO3 bicrystal substrates with [001]-tilt grain boundary by employing Fe buffer layers. However, an additional spinel (i.e. MgAl2O4) buffer between Fe and SrTiO3 is necessary since an epitaxial, smooth surface of Fe layer can not be grown on bare SrTiO3. Both types of bicrystal films show good crystalline quality.

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BaFe2As2/Fe bilayers with [001]-tilt grain boundary on MgO and SrTiO3 bicrystal substrates

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