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| 001 | 863420 | ||
| 005 | 20210130002110.0 | ||
| 037 | _ | _ | |a FZJ-2019-03490 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Schöffmann, Patrick |0 P:(DE-Juel1)169442 |b 0 |u fzj |
| 111 | 2 | _ | |a MLZ Conference Neutrons for Information and Quantum Technologies |g MLZ Conference |c Lenggries |d 2019-06-04 - 2019-06-07 |w Germany |
| 245 | _ | _ | |a Fabrication and characterization of SrCoO$_{3−𝛿}$ thin films |
| 260 | _ | _ | |c 2019 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
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| 520 | _ | _ | |a Because of its multivalent Co states and high oxygen mobility SrCoO$_{3−𝛿}$ (SCO) is a promising material for energy and spintronic applications [1]. Upon changing its oxygen content it exhibits a topotactic phase transition. While SrCoO$_3$ is a ferromagnetic metal (T$_C$=305 K) with perovskite structure, SrCoO$_{2.5}$ is an antiferromagnetic insulator(T$_N$ =570 K) with brownmillerite structure.In this contribution, we focus on the fabrication of SrCoO$_{2.5}$ thin films by molecular beam epitaxy on various substrates like SrTiO$_3$ and LaAlO$_3$. As Sr and Co are coevaporated from distinct effusion cells, the first task is to obtain stoichiometric thin films. We present results of RHEED assisted stoichiometric thin film growth and of driving the topotactic transition by annealing in low oxygen gas flow.For bulk SCO it has been shown that the perovskite structure can be stabilized by adding of about 5 % rare earth ions [2]. For this reason we study the effect of Sm doping on the crystal structure of SCO thin films. The magnetic properties were studied with SQUID and the crystalline properties by surface characterization methods like LEED, RHEED and XRR.[1] H. Jeen et al., Nature Materials 12, (2013) 1057 [2] M. James et al., Solid State Sciences 6 (2004) 655 |
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| 700 | 1 | _ | |a Pütter, Sabine |0 P:(DE-Juel1)142052 |b 1 |e Corresponding author |u fzj |
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