405 citations · 1.8k across the 36 of their papers we have counts for
15 papers · 1 filter
Element-Specific Study of Magnetic Anisotropy and Hardening in SmCoCu Thin Films
Georgia Gkouzia, Damian Günzing, Ruiwen Xie +10
This work investigates the effect of copper substitution on the magnetic properties of SmCo thin films synthesized by molecular beam epitaxy. A series of thin films with vary…
Identifying grain boundary and intragranular pinning centres in Sm2(Co,Fe,Cu,Zr)17 permanent magnets to guide performance optimisation
Stefan Giron, Nikita Polin, Esmaeil Adabifiroozjaei +21
Permanent magnets draw their properties from a complex interplay of chemical composition and phase, each with their associated intrinsic magnetic properties. Gaining an understandi…
Oxygen Defect Engineered Magnetism of La2NiMnO6 Thin Films
Jasnamol P. Palakkal, Thorsten Schneider, Lambert Alff
The double perovskite La2NiMnO6 (LNMO) exhibits complex magnetism due to the competition of magnetic interactions that are strongly affected by structural and magnetic inhomogeneit…
On the origin of incoherent magnetic exchange coupling in MnBi/FeCo bilayer system
Sareh Sabet, Ashkan Moradabadi, Saleh Gorji +9
In this study we investigate the exchange coupling between the hard magnetic compound MnBi and the soft magnetic alloy FeCo including the interface structure between the two phases…
Hafnium carbide formation in oxygen deficient hafnium oxide thin films
C. Rodenbücher, E. Hildebrandt, K. Szot +6
On highly oxygen deficient thin films of hafnium oxide (hafnia, HfO) contaminated with adsorbates of carbon oxides, the formation of hafnium carbide (HfC) at the surfac…
Physical properties and band structure of reactive molecular beam epitaxy grown oxygen engineered HfO
Erwin Hildebrandt, Jose Kurian, Lambert Alff
We have conducted a detailed thin film growth structure of oxygen engineered monoclinic HfO grown by reactive molecular beam epitaxy (MBE). The oxidation conditions indu…
Controlled oxygen vacancy induced p-type conductivity in HfO{2-x} thin films
Erwin Hildebrandt, Jose Kurian, Mathis M. Müller +3
We have synthesized highly oxygen deficient HfO thin films by controlled oxygen engineering using reactive molecular beam epitaxy. Above a threshold value of oxygen vacanci…
Magnetism in Re-based ferrimagnetic double perovskites
A. Winkler, N. Narayanan, D. Mikhailova +9
We have investigated spin and orbital magnetic moments of the Re 5d ion in the double perovskites A2FeReO6 (A = Ba, Sr, Ca) by X-ray magnetic circular dichroism (XMCD) at the Re L(…
Diffusion based degradation mechanisms in giant magnetoresistive spin valves
M. Hawraneck, J. Zimmer, W. Raberg +5
Spin valve systems based on the giant magnetoresistive (GMR) effect as used for example in hard disks and automotive applications consist of several functional metallic thin film l…
X-ray magnetic circular dichroism study of Re 5d magnetism in Sr2CrReO6
P. Majewski, S. Gepraegs, O. Sanganas +5
We have measured Re 5d spin and orbital magnetic moments in the ferrimagnetic double perovskite Sr2CrReO6 by X-ray magnetic circular dichroism at the L_{2,3} edges. In fair agreeme…
Magnetic moments of W 5d in Ca2CrWO6 and Sr2CrWO6 double perovskites
P. Majewski, S. Gepraegs, A. Boger +9
We have investigated the magnetic moment of the W ion in the ferrimagnetic double perovskites Sr2CrWO6 and Ca2CrWO6 by X-ray magnetic circular dichroism (XMCD) at the W L(2,3) edge…
Room temperature tunneling magnetoresistance in magnetite based junctions: Influence of tunneling barrier
D. Reisinger, P. Majewski, M. Opel +2
Magnetite (Fe3O4) based tunnel junctions with turret/mesa structure have been investigated for different barrier materials (SrTiO3, NdGaO3, MgO, SiO2, and Al2O(3-x)). Junctions wit…
Hall effect in FeO epitaxial thin films
D. Reisinger, P. Majewski, M. Opel +2
Magnetite epitaxial thin films have been prepared by pulsed laser deposition at 340 C on MgO and Si substrates. One key result is that the thin film properties are almost identical…
Epitaxy of Fe3O4 on Si(001) by pulsed laser deposition using a TiN/MgO buffer layer
D. Reisinger, M. Schonecke, T. Brenninger +4
Epitaxy of oxide materials on silicon (Si) substrates is of great interest for future functional devices using the large variety of physical properties of the oxides as ferroelectr…
Sub-unit cell layer-by-layer growth of Fe3O4, MgO, and Sr2RuO4 thin films
D. Reisinger, B. Blass, J. Klein +5
The use of oxide materials in oxide electronics requires their controlled epitaxial growth. Recently, it was shown that Reflection High Energy Electron Diffraction (RHEED) allows t…