Patrick Schöffmann
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View article: Non‐Oxidative Mechanism in Oxygen‐Based Magneto‐Ionics
Non‐Oxidative Mechanism in Oxygen‐Based Magneto‐Ionics Open
The Ta/CoFeB/Pt/MgO/HfO 2 system is investigated, whose magnetic anisotropy can be controlled through magneto‐ionic gating, using both ionic liquid and solid state gating, via a non‐oxidative mechanism combining reversible and irreversible…
View article: Finite size effects on the metamagnetic phase transition in a B2 FeRh nanocluster thick film
Finite size effects on the metamagnetic phase transition in a B2 FeRh nanocluster thick film Open
FeRh alloys in the CsCl-type (B2) chemically ordered phase present an antiferromagnetic to ferromagnetic order transition around 370 K observed in bulk and continuous films but absent in nanoclusters. In this study, we investigate the ther…
View article: Controlling interface anisotropy in CoFeB/MgO/HfO2 using dusting layers and magneto-ionic gating
Controlling interface anisotropy in CoFeB/MgO/HfO2 using dusting layers and magneto-ionic gating Open
In this work, we present the magneto-ionic response to ionic liquid gating in Ta/CoFeB/MgO/HfO2 stacks, where heavy metal dusting layers of Ta, W, and Pt are inserted at the Ta/CoFeB and CoFeB/MgO interfaces. Dusting layers of W inserted a…
View article: Strain and charge contributions to the magnetoelectric coupling in Fe<sub>3</sub>O<sub>4</sub>/PMN-PT artificial multiferroic heterostructures
Strain and charge contributions to the magnetoelectric coupling in Fe<sub>3</sub>O<sub>4</sub>/PMN-PT artificial multiferroic heterostructures Open
The quest to realize new kinds of data storage devices has motivated recent studies in the field of magnetoelectric heterostructures. One of the most commonly investigated systems is Fe 3 O 4 /[Pb(Mg Nb O 3 ] 0.7 –[PbTiO 3 …
View article: Unexpected precipitates in conjunction with layer-by-layer growth in Mn-enriched La2/3Sr1/3MnO3 thin films
Unexpected precipitates in conjunction with layer-by-layer growth in Mn-enriched La2/3Sr1/3MnO3 thin films Open
In recent years, layer-by-layer heteroepitaxy has become a versatile tool for depositing novel materials not accessible in bulk form. While it is possible to control the mono layer sequence on an atomic scale with the help of sophisticated…
View article: Differentiation between strain and charge mediated magnetoelectric coupling in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)<sub>0.7</sub>Ti<sub>0.3</sub>O<sub>3</sub>(001)
Differentiation between strain and charge mediated magnetoelectric coupling in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)<sub>0.7</sub>Ti<sub>0.3</sub>O<sub>3</sub>(001) Open
Magnetoelectric (ME) coupling in La 0.7 Sr 0.3 MnO 3 /Pb(Mg 1/3 Nb 2/3 ) 0.7 Ti 0.3 O 3 (LSMO/PMN–PT (001)) has been probed in the past years to identify the underlying mechanism behind it. PMN–PT, which is well known for its excellent pie…
View article: RBS raw data for publication "Tuning the Co/Sr stoichiometry of SrCoO2.5 thin films by RHEED assisted MBEgrowth"
RBS raw data for publication "Tuning the Co/Sr stoichiometry of SrCoO2.5 thin films by RHEED assisted MBEgrowth" Open
RBS raw date for publication "Tuning the Co/Sr stoichiometry of SrCoO2.5 thin films by RHEED assisted MBEgrowth" Simulation results using SIMNRA included as well
View article: Tuning the Co/Sr stoichiometry of SrCoO<sub>2.5</sub> thin films by RHEED assisted MBEgrowth
Tuning the Co/Sr stoichiometry of SrCoO<sub>2.5</sub> thin films by RHEED assisted MBEgrowth Open
Strontium cobaltite (SrCoO 2.5+ δ , SCO) is a fascinating material because of its topotactic structural phase transition caused by a change in oxygen stoichiometry. In the brownmillerite phase ( δ = 0) it is an insulating antiferromagnet w…