A5024541231- Geological and Geochemical Analysis
- Nuclear materials and radiation effects
- Spectroscopy Techniques in Biomedical and Chemical Research
- High-pressure geophysics and materials
- Mineralogy and Gemology Studies
- Radioactive element chemistry and processing
- Geological Formations and Processes Exploration
- Spectroscopy and Chemometric Analyses
- Cultural Heritage Materials Analysis
- Marine and environmental studies
- Graphene research and applications
- X-ray Spectroscopy and Fluorescence Analysis
- Geology and Paleoclimatology Research
- Ion-surface interactions and analysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Laser-induced spectroscopy and plasma
- Crystal Structures and Properties
- Polymer Nanocomposite Synthesis and Irradiation
- earthquake and tectonic studies
- Astro and Planetary Science
- Carbon Nanotubes in Composites
- Geochemistry and Elemental Analysis
- Electron and X-Ray Spectroscopy Techniques
- Phase-change materials and chalcogenides
- Nanocluster Synthesis and Applications
Institute for Solid State Physics and Optics
2018-2024
Eötvös Loránd University
2012-2023
HUN-REN Wigner Research Centre for Physics
2017-2023
Hungarian Research Network
2021
Hungarian Academy of Sciences
2017-2019
Institute for Literary Studies
2018
University of Vienna
2008-2016
Bay Zoltán Foundation for Applied Research
2011
A robust empirical correction formula has been developed for the approximation of Lorentzian widths, using a known spectrometer bandpass, in instrument-broadened Voigt bands optical spectra. The relationship between analytically calculated [(w(Voigt) - w(Lorentz))/w(Gauss)] and [w(Voigt)/w(Gauss) 1] values (where w is full width at half-maximum [FWHM]) analyzed to derive (w(Voigt) w(Lorentz)) difference. precision method demonstrated by comparing its performance several previously published...
In this article, we document a detailed analytical characterisation of zircon M127, homogeneous 12.7 carat gemstone from Ratnapura, Sri Lanka. Zircon M127 has TIMS ‐determined mean U–Pb radiogenic isotopic ratios 0.084743 ± 0.000027 for 206 Pb/ 238 U and 0.67676 0.00023 207 235 (weighted means, 2 s uncertainties). Its age 524.36 0.16 Ma (95% confidence uncertainty) is concordant within the uncertainties decay constants. The δ 18 O value (determined by laser fluorination) 8.26 0.06‰ VSMOW (2...
By exposing flat and curved carbon surfaces to coronene, a variety of van der Waals hybrid heterostructures are prepared, including coronene encapsulated in nanotubes, dicoronylene adsorbed on nanotubes or graphite via π–π interactions. The structure the final product is determined by temperature experiment curvature surface. While at temperatures below close sublimation point with suitable diameters filled single molecules, higher additional dimerization oligomerization occurs surface...
Abstract A new and simple method is developed to synthesize carbon microspheres decorated with iron sulfide nanoparticles for mercury ion removal from water. The synthesis based on carbonizing polystyrene–divinylbenzene-based iron(III) sulfate-loaded cation exchange resins between 500 1000 °C. phase composition, surface area, morphology of these materials are characterized by various spectroscopic diffraction techniques, including Mössbauer spectroscopy, powder X-ray diffraction, Raman...
Beryl and euclase crystals from the Mina do Santino Jacu pegmatites in Borborema Pegmatite Province northeastern Brazil contain several generations of melt fluid inclusions, which allow interpretation P-T - X conditions responsible for beryl crystallization alteration a primary pegmatitic mineral assemblage to mixture hydrothermal minerals (euclase, bertrandite, kaolinite, quartz). Primary inclusions hosted by were trapped simultaneously. However, their homogenization temperatures are...
Although gilt silver threads were widely used for decorating historical textiles, their manufacturing techniques have been elusive centuries. Contemporary written sources give only limited, sometimes ambiguous information, and detailed cross-sectional study of the microscale soft noble metal objects has hindered by sample preparation. In this work, to a thorough characterization threads, nano- textural, chemical, structural data on cross sections, prepared focused ion beam milling,...
Confocal Raman microspectroscopy (CRM) with 633- and 785-nm excitation wavelengths combined optical clearing (OC) technique was used for ex-vivo study of porcine skin in the fingerprint region. The has been performed on samples by applying a mixture glycerol distilled water glycerol, chemical penetration enhancer dimethyl sulfoxide (DMSO) during 30[Formula: see text]min 60[Formula: treatment. It shown that use CRM at 633[Formula: text]nm allowed one to preserve high probing depth,...
Incremental growth and mineralogy of Pannonian (Late Miocene) sciaenid otoliths: paleoecological implications Ontogenetic age body dimensions were studied on three extremely well-preserved fish otoliths from sublittoral marls Lake Pannon Doba, Bakony Mts, Hungary. Macroscopic microscopic observations offered clear evidence for the preservation genuine structural characteristics, instance bipartite incremental features. ages assigned specimens as 16, 7 6 years by counting annuli sagittae....
A gold-coated array of flow-through inverse pyramids applicable as substrate for entrapment and immobilization micro-objects surface enhanced Raman spectroscopic measurements was fabricated using bulk micromachining techniques from silicon. Surface morphology, optical reflectance, properties, amplification the were modelled characterized. It found that special perforated periodic 3D structure can be used parallel particle cell trapping highly sensitive molecular analysis immobilized objects.
Nickel nanoparticles are gaining increasing attention in catalysis due to their versatile catalytic action. A novel, low-cost and facile method was developed this work synthesize carbon microsphere-supported metallic nickel (Ni-NP/C) for heterogeneous catalysis. The synthesis based on carbonizing a polystyrene-based cation exchange resin loaded with ions at temperatures between 500 1000 °C. decomposition of the nickel-organic framework resulted both Ni-NP microsphere formation. phase...
Abstract The effect of laser irradiation in the energy range from 20 mW to 200 was investigated 109 nm thick Fe 51 Rh 49 film deposited on an MgO (100) substrate. initial, A1 structure with fully paramagnetic magnetic ordering achieved after irradiating samples 120 keV Ne + ions a fluence 1 × 10 16 ion cm −2 , as it confirmed by conversion-electron Mössbauer spectroscopy. At higher powers physical damage layer observed, while lowest power case, force microscopy revealed well-defined...