A5078362281- Physics of Superconductivity and Magnetism
- Semiconductor materials and interfaces
- Advanced Condensed Matter Physics
- Ion-surface interactions and analysis
- Magnetic properties of thin films
- Magnetic and transport properties of perovskites and related materials
- Electron and X-Ray Spectroscopy Techniques
- Electrodeposition and Electroless Coatings
- Copper Interconnects and Reliability
- Silicon and Solar Cell Technologies
- Theoretical and Computational Physics
- Surface and Thin Film Phenomena
- Quantum and electron transport phenomena
- Rare-earth and actinide compounds
- Semiconductor materials and devices
- High-pressure geophysics and materials
- Microstructure and mechanical properties
- ZnO doping and properties
- Corrosion Behavior and Inhibition
- Anodic Oxide Films and Nanostructures
- Superconducting Materials and Applications
- Metallic Glasses and Amorphous Alloys
- Thin-Film Transistor Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Magnetic Properties and Applications
HUN-REN Institute for Nuclear Research
2014-2025
Hungarian Academy of Sciences
2010-2024
Nanoparticles exhibit diverse effects when added as additives to oily medium, enhancing tribological properties and surface characteristics. Studies have shown that many oxide ceramic nanoparticles improve friction wear, while mixtures also demonstrate favorable properties. This study explores the effect of an yttria–silica (Y2O3, SiO2) nanoparticle mixture in a Group III base oil medium. The results reveal significantly reduces (−8–17%), mean wear scar diameter (−32%), volume (−94%),...
In Greenland, mining has been undertaken in remote areas for more than 150 years and long before legislation environmental protection was implemented. The Black Angel mine by the Affalikassaa fjord Central West Greenland served as a marble quarry, known Maarmorilik, operating 1930s when metal-sulphide ore body discovered ‘Black Angel’ mountain on other side of fjord. This discovery led to establishment lead-zinc mine, from 1973-1990 with total 13.5 million tons produced...
This work characterizes the transport properties of double-barrier Schottky junctions with nanopatterned titanium oxide as a semiconductor. Nanoporous thin films varying pore diameters are created by using electrochemical anodization. These then covered 50 nm thick iron layer, forming patterned Ti/TiOx/Fe junctions. SEM images confirm nanoporous morphology oxide, while XRD measurements show that polycrystalline, multiple phases formed after annealing. UV–vis spectroscopy verifies...
The mechanism of magnetization reversal in single-domain ferromagnetic particles is interest many applications, most which losses must be minimized. In cancer therapy by hyperthermia the opposite requirement prevails: specific loss power should maximized. Of mechanisms dissipation, here we study effect Néel relaxation on magnetic nanoparticles unable to move or rotate and compare linearly circularly polarized fields. We present exact analytical solutions Landau-Lifshitz equation as derived...
Mass transport and solid-state reactions in nanocrystalline thin films are reviewed. It is illustrated that diffusion along different grain boundaries (GBs) can have important effects on the overall intermixing process between two pure films. These processes be well characterized by a bimodal GB network, with (fast slow) diffusivities. First atoms migrate fast GBs accumulate at film surface. accumulated form secondary source for back slow boundaries. Thus of gradually filled up diffusing...
We describe a method for measurement of nanoscale shift interfaces in layered systems by combination secondary neutral mass spectrometry and profilometer. demonstrate it the example investigation interface shifts during solid state reaction Ni/amorphous-Si system. The kinetics shrinkage initial nanocrystalline Ni film amorphous Si layer as well average growth product phases were determined at 503 K. results show that resolution can be reached is promising following reactions different thin systems.
Nonlinear transport in the low-temperature vortex glass state of single crystal ${\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8}$ has been investigated with fast current pulses driven along $\mathrm{ab}$ plane. Field cooled preparation shows a higher threshold (marking jump or break slope voltage response) than zero field (ZFC) one, but it is found to be metastable and convertible ZFC response by small excursion. The metastability appears on low temperature side peak...
A secondary neutral mass spectrometric (SNMS) depth profile study of electrodeposited Co/Cu multilayers was performed. Depth measurements were performed both in the conventional way (i.e., starting sputtering from final deposit surface) and reverse manner detaching substrate analysis side, which very smooth as compared to surface). The latter method could yield significantly larger intensity fluctuations SNMS spectra. Surface roughness data measured with atomic force microscopy (AFM) for...