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@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},
}