K. Freindl
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View article: Spin–orbit effects in the surface state of Fe(001) revealed by full surface Brillouin zone mapping
Spin–orbit effects in the surface state of Fe(001) revealed by full surface Brillouin zone mapping Open
The electronic structure of Fe has been experimentally studied using angle-resolved photoemission spectroscopy (ARPES) since the early days of photoemission. Yet, the existence and nature of the Fe(001) surface state remain a subject of on…
View article: Interfacial chemistry meets magnetism: comparison of $Co/Fe_3O_4$ and $Co/α-Fe_2O_3$ epitaxial heterostructures
Interfacial chemistry meets magnetism: comparison of $Co/Fe_3O_4$ and $Co/α-Fe_2O_3$ epitaxial heterostructures Open
The magnetic and chemical structure of metal/oxide interfaces were studied in cobalt/magnetite, $Fe_3O_4$, and cobalt/hematite, $α-Fe_2O_3$, epitaxial heterostructures using the comprehensive selection of microscopic and spectroscopic meth…
View article: The Use of External Fields (Magnetic, Electric, and Strain) in Molecular Beam Epitaxy—The Method and Application Examples
The Use of External Fields (Magnetic, Electric, and Strain) in Molecular Beam Epitaxy—The Method and Application Examples Open
Molecular beam epitaxy (MBE) is a powerful tool in modern technologies, including electronic, optoelectronic, spintronic, and sensoric applications. The primary factor determining epitaxial heterostructure properties is the growth mode and…
View article: Magnetic-Field-Assisted Molecular Beam Epitaxy: Engineering of Fe3O4 Ultrathin Films on MgO(111)
Magnetic-Field-Assisted Molecular Beam Epitaxy: Engineering of Fe3O4 Ultrathin Films on MgO(111) Open
Molecular beam epitaxy is widely used for engineering low-dimensional materials. Here, we present a novel extension of the capabilities of this method by assisting epitaxial growth with the presence of an external magnetic field (MF). MF-a…
View article: Beating the limitation of the Néel temperature of FeO with antiferromagnetic proximity in FeO/CoO
Beating the limitation of the Néel temperature of FeO with antiferromagnetic proximity in FeO/CoO Open
In our study, we investigate the influence of the proximity of an antiferromagnetic CoO layer on magnetic properties of ultrathin wüstite (FeO) films. Comparative Mössbauer spectroscopy measurements for MgO/FeO/MgO(001) and MgO/FeO/CoO/MgO…
View article: β-Carotene-Induced Alterations in Haemoglobin Affinity to O2
β-Carotene-Induced Alterations in Haemoglobin Affinity to O2 Open
β-Carotene (β-Crt) can be dispersed in hydrophobic regions of the membrane of red blood cells (RBC). Its location, orientation and distribution strongly depend on carotenoid concentration. In the present pilot trial (six human subjects inv…
View article: Interactions of β-Carotene with Red Blood Cells: Its Regulatory Role on Hemoglobin Functioning
Interactions of β-Carotene with Red Blood Cells: Its Regulatory Role on Hemoglobin Functioning Open
Carotenoids are structurally and functionally a very diverse group of natural pigments.They are produced exclusively by organisms capable of photosynthesis and serve as important exogenous antioxidants for all living organisms.One of the m…
View article: Driving the polar spin reorientation transition of ultrathin ferromagnets with antiferromagnetic–ferromagnetic phase transition of nearby FeRh alloy film
Driving the polar spin reorientation transition of ultrathin ferromagnets with antiferromagnetic–ferromagnetic phase transition of nearby FeRh alloy film Open
We show that in-plane to out-of-plane magnetization switching of a ferromagnetic layer can be driven by antiferromagnetic–ferromagnetic phase transition in a nearby FeRh system. For FeRh/Au/FeAu trilayers, the impact of the magnetic phase …
View article: High-temperature oxygen monolayer structures on W(110) revisited
High-temperature oxygen monolayer structures on W(110) revisited Open
Systematic studies of the two high-temperature monolayer oxygen structures\nthat exist on the (110) tungsten surface were performed using low-energy\nelectron microscopy and diffraction measurements. Our work questions the\ncommonly accept…
View article: Chemistry-dependent magnetic properties at the FeNi oxide–metal interface
Chemistry-dependent magnetic properties at the FeNi oxide–metal interface Open
Fe and Ni compounds and their oxides offer stoichiometry dependent magnetic properties, exploitable for the design of magnetic heterojunctions.
View article: Decoding Biomineralization: Interaction of a Mad10-Derived Peptide with Magnetite Thin Films
Decoding Biomineralization: Interaction of a Mad10-Derived Peptide with Magnetite Thin Films Open
Protein-surface interactions play a pivotal role in processes as diverse as biomineralization, biofouling, and the cellular response to medical implants. In biomineralization processes, biomacromolecules control mineral deposition and arch…
View article: Enhancement of perpendicular magnetic anisotropy and its electric field-induced change through interface engineering in Cr/Fe/MgO
Enhancement of perpendicular magnetic anisotropy and its electric field-induced change through interface engineering in Cr/Fe/MgO Open
Recently, perpendicular magnetic anisotropy (PMA) and its voltage control (VC) was demonstrated for Cr/Fe/MgO. In this study, we shed light on the origin of large voltage-induced anisotropy change in Cr/Fe/MgO. Analysis of the chemical str…
View article: Enhancement of perpendicular magnetic anisotropy and its electric field-induced change through interface engineering in Cr/Fe/MgO
Enhancement of perpendicular magnetic anisotropy and its electric field-induced change through interface engineering in Cr/Fe/MgO Open
Recently, perpendicular magnetic anisotropy (PMA) and its voltage control (VC) was demonstrated for Cr/Fe/MgO (Physical Review Applied 5, 044006 (2016)). In this study, we shed a light on the origin of large voltage-induced anisotropy chan…