A5082846060- Electron and X-Ray Spectroscopy Techniques
- Molten salt chemistry and electrochemical processes
- X-ray Spectroscopy and Fluorescence Analysis
- High-pressure geophysics and materials
- Embedded Systems Design Techniques
- Advanced Chemical Physics Studies
- Magnetic properties of thin films
- Transition Metal Oxide Nanomaterials
- Inorganic Fluorides and Related Compounds
- Theoretical and Computational Physics
- Electronic and Structural Properties of Oxides
- Atomic and Molecular Physics
- Magnetic Properties and Synthesis of Ferrites
- Iron oxide chemistry and applications
- Minerals Flotation and Separation Techniques
- Interconnection Networks and Systems
- Semiconductor materials and devices
- Semiconductor materials and interfaces
- ZnO doping and properties
- Rare-earth and actinide compounds
- Advanced Thermoelectric Materials and Devices
- Metallurgical Processes and Thermodynamics
- Parallel Computing and Optimization Techniques
- Characterization and Applications of Magnetic Nanoparticles
- Advanced Materials Characterization Techniques
Delft University of Technology
2023-2025
NXP (Netherlands)
2007
Eindhoven University of Technology
1998-2001
University of Groningen
1994-1998
Radboud University Nijmegen
1993
We show that linear polarized x-ray-absorption spectroscopy can be used to measure the temperature and thickness dependence of magnetic moments in NiO thin films. demonstrate both long-range order nearest-neighbor spin-spin correlations revealed. (100) films with thicknesses 5, 10, 20 monolayers epitaxially grown on MgO are studied. The N\'eel is found strongly reduced from bulk value even for monolayer film.
We report on the layer thickness dependence of Ni 2p core-level line shapes epitaxially grown, in a layer-by-layer fashion, NiO single-crystal MgO (100) substrate. The results demonstrate sensitivity shape to nearest as well next-nearest-neighbor coordination number. are consistent with recent theoretical study nonlocal screening effects. \textcopyright{} 1996 American Physical Society.
A new effect on the X-ray absorption line shape is described which proportional to nearest-neighbor spin-spin correlation function. We present theory and demonstrate use of linear polarized x-ray spectroscopy study temperature dependence long-range order parameter function in antiferro-magnetic NiO.
The thermodynamic and thermo-physical properties of the molten salt system have been investigated using an experimental modelling approach. This includes a single intermediate compound , whose structure has X-ray neutron diffraction. Furthermore, this exhibits solubility in at high temperatures up to concentration around 25% 1060 K. Additionally, our measurements show about 5% 973 investigation these solid solutions performed quenching experiments subsequent post-characterisation by...
In this paper we report the soft magnetic properties of thin films sputtered MnZn ferrite deposited on thermally oxidized Si substrates. A high deposition temperature, 600 °C, together with addition water vapor to sputtering gas was found improve initial ac permeability, μ. The highest value obtained approximately 30. For MnZn-ferrite much larger grain sizes, as by a polycrystalline Zn-ferrite substrate, μ 100 obtained. results are discussed in terms so-called nonmagnetic boundary model.
The thermochemistry of the ternary system CsI–PbI2–BiI3, interest for applications in photovoltaics, memory devices, and nuclear applications, among other things, is investigated this work. binary phase diagrams CsI–PbI2 CsI–BiI3 were subjected to renewed experimental investigation, compounds CsPbI3, Cs4PbI6, Cs3Bi2I9 found be only stable phases temperature window. liquidus lines invariant equilibria determined. BiI3–PbI2 measured first time by using Differential Scanning Calorimetry (DSC)....
Abstract The chemical differences between passivated and oxidized layers on 17.5 at.% FeCr 5 FeTi alloys are analysed by means of soft x‐ray absorption spectroscopy (XAS). relative strengths were used to obtain a quantitative estimation the composition layers. In FeCr, layer shows Cr enrichment 34 with respect surface. addition, 2 O 3 has been identified as main oxide formed in FeCr. By contrast, FeTi, results consistent formation ternary oxide. potential XAS study oxidation passivation is discussed.
Heterogeneous MPSoC design where flexible programmable cores are combined with optimized HW co-processors is a quite complex and challenging task. In this paper, we present system-level flow that uses single functional reference for modeling both SW. The models follow an interface-centric approach based on the TTL interface (Task Transaction Level). applied at all three abstraction levels of flow: functional, architecture implementation level. model level serves as reference. implementations...
The thermodynamic and thermo-physical properties of the binary salt systems AECl 2 –NdCl 3 (AE = Sr, Ba) have been investigated using an experimental modelling approach.
In this paper we present a study of the effects superexchange on isotropic Ni 2p x-ray-absorption spectrum NiO. The exchange interactions are included by performing model calculations cluster with two nickel atoms. It is shown that spectra sensitive to nearest-neighbor and effect larger than obtained from molecular-field approximation. We will also show first moment proportional 〈${\mathbf{S}}_{\mathit{i}}$\ensuremath{\cdot}${\mathbf{S}}_{\mathit{j}}$〉.
We report on a study of grazing incidence absorption and reflection spectra NiO in the region Ni 2p edge. The aim is to evaluate distortion near edge spectrum by critical angle behavior individual components within spectrum. This can be used improve separation multiplets enhance low spectral weight line shapes like charge transfer satellites. measured have been compared with calculations using an optical model.
We present a computational analysis of the influence taking full multiplet structure into account in calculations single-ion contribution to magnetocrystalline anisotropy (MCA) $3d$ transition-metal (TM) ions localized-electron compounds at $T=0$ K. For atoms with ${d}^{n}$ $(n=1--4,6--9)$ configurations, sites local cubic, tetragonal, or trigonal symmetry single ion MCA on basis Hund's rule ground state term only [crystal field (CF) theory] is compared fully relativistic first principles...