% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @INPROCEEDINGS{Schffmann:867751, author = {Schöffmann, Patrick and Pütter, Sabine and Sarkar, Anirban and Syed Mohd, Amir and Waschk, Markus and Bhatnagar, Tanvi and Zakalek, Paul and Brückel, Thomas}, title = {{T}opotactic transition mechanisms in {S}r{C}o{O}$_{2.5+𝑥}$ films}, reportid = {FZJ-2019-06366}, year = {2019}, abstract = {Strontium cobaltite (SrCoO3−𝛿) exists in two topotactic phases, depending on the oxygen content. SrCoO3 is a ferromagnetic metal (T𝐶=305K) with perovskite structure while SrCoO2.5 is an antiferromagnetic insulator(T𝑁=570K) with brownmillerite structure. Because of the multivalent Co states and high oxygen mobility it is a promising material for energy and information applications [1]. To control the oxygen content, several possibilites exist. We focus on annealing in oxidising conditions and applying variable strain with a piezoelectric substrate to the film. We grow thin films of SrCoO2.5 by molecular beam epitaxy on various substrates including a piezoelectric with a conducting buffer layer. To be able to transfer strain from the substrate to the film, a highsample quality and epitaxy is mandatory, thus we present the results of the film growth and quality, as well as first results of the magnetic characterisation by SQUID and neutron reflectometry. [1] H. Jeen et al., Nature Materials 12, 2013}, month = {Mar}, date = {2019-03-31}, organization = {DPG-Frühjahrstagung der Sektion Kondensierte Materie, Regensburg (Germany), 31 Mar 2019 - 5 Apr 2019}, subtyp = {After Call}, cin = {JCNS-FRM-II / JCNS-2 / ER-C-1 / PGI-4 / MLZ}, cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)ER-C-1-20170209 / I:(DE-Juel1)PGI-4-20110106 / I:(DE-588b)4597118-3}, pnm = {524 - Controlling Collective States (POF3-524) / 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)}, pid = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4}, experiment = {EXP:(DE-MLZ)MBE-MLZ-20151210}, typ = {PUB:(DE-HGF)6}, url = {https://juser.fz-juelich.de/record/867751}, }