A5016127146- Hungarian Social, Economic and Educational Studies
- Semiconductor materials and interfaces
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Surface and Thin Film Phenomena
- Semiconductor materials and devices
- Financial Literacy, Pension, Retirement Analysis
- Advanced Memory and Neural Computing
- Income, Poverty, and Inequality
- Intermetallics and Advanced Alloy Properties
- Copper Interconnects and Reliability
- Psychological Well-being and Life Satisfaction
- Advanced Materials Characterization Techniques
- Economic Growth and Productivity
- Regional Development and Policy
- Global Financial Crisis and Policies
- Silicon and Solar Cell Technologies
- Social Policy and Reform Studies
- Fiscal Policy and Economic Growth
- Electrodeposition and Electroless Coatings
- Transition Metal Oxide Nanomaterials
- Gender, Labor, and Family Dynamics
- Magnetic properties of thin films
- Monetary Policy and Economic Impact
- Graphene research and applications
Buda Health Center
2022-2025
HUN-REN Centre for Energy Research
2016-2024
Széchenyi István University
2022-2024
Obuda University
2022-2024
Institute for Technical Physics and Materials Science
2004-2023
HUN-REN Centre for Economic and Regional Studies
2016-2021
Institute of Economics
1989-2021
Budapest University of Technology and Economics
2018-2021
Ecolab (United States)
2021
Technical University of Cluj-Napoca
2021
The initial phases of the ALD growth ZnO have been examined. It is shown that exhibits an island-like on Si, layer-by-layer GaN, whereas sapphire, mode can be tuned by deposition temperature. A new method for depositing ultrathin smooth polycrystalline films presented. rates different substrates and at temperatures were analyzed, possibility epitaxial was also
Future PHz electronic devices may be able to perform operations on few-femtosecond time-scales. Such are based the ability control currents induced by intense few-cycle laser pulses. Investigations of this scheme have been complex, amplified systems, typically delivering mJ or sub-mJ-level pulses, limiting achievable clock rate kHz regime. Here, we demonstrate transient metallization and lightwave-driven current with 300-pJ pulses at 80 MHz repetition in dielectric media (HfO 2 fused...
In spite of the numerous works devoted to studying magnetoresistance Co metal, very diverging results have been reported in literature on magnitude anisotropic (AMR) ratio samples mostly without detailed structural characterization. Therefore, main purpose present work was establish if crystal structure has an effect AMR ratio. With help studies by X-ray diffraction (XRD) and transmission electron microscopy, fully hcp-Co predominantly fcc–Co polycrystalline foils were produced...
The 2006 UNDP report made a powerful point about innovation and social impact. changes in urban water provision, sanitation wastewater removal across European cities since the mid-nineteent...
The article analyses the specific features of a social innovation aimed at assisting group, which is not simply marginalized, but also socially excluded least for decades. It focuses on activities non-profit corporation providing microcredit, mentoring and other services to undereducated, unemployed Roma people in Hungary. paper relies capability approach developed by Sen Nussbaum. main conclusion that loans without building can lead mission drift towards less disadvantaged groups,...
After the 2007–2008 financial crisis and subsequent prolonged, deep recession, question of whether fiscal policy can be applied to stimulate economy came into focus, as conventional tools monetary became ineffective. Accordingly, related research also received a new boost. The purpose our paper is present results, which mainly focus on influence business cycles. Although there still much debate, claim that effects are not constant, but rather depend state cycle, has been supported by...
In a previous work [El-Tahawy et al., J. Magn. Mater. 560 , 169660 (2022)], we reported that from sulfate type bath, hcp-Co can be electrodeposited at high pH and low current density investigated the structure magnetoresistance (MR) characteristics of such electrodeposits. Based on this earlier work, Co-rich Co-Cu Co-Ni alloy electrodeposits were prepared under same conditions by adding varying amounts CuSO 4 NiSO respectively, to CoSO bath. According results detailed structural studies...
Gd-silicide phases were investigated by x-ray diffraction. The results showed that not only one phase exists in a Gd thin-film and silicon substrate reactions. first formed was hexagonal GdSi≊1.7, the second orthorhombic GdSi2. ratio of two depends on temperature heat treatment, at given time annealing, dependence thickness evaporated layer found. At ∼100-nm dominant GdSi2, ∼250 nm GdSi≊1.7. In 300–1000-nm interval GdSi2 main component again. Rutherford backscattering analysis found mixed...
Due to its remarkable switching effect in electrical and optical properties, VO2 is a promising material for several applications. However, the stoichiometry control of multivalent vanadium oxides, especially with rational deposition technique, still challenging. Here, we propose optimize simple fabrication method rich layers by oxidation metallic atmospheric air. It was shown that sufficiently broad annealing time window 3.0–3.5 h can be obtained at an optimal temperature 400 °C. The...
Today's HR tendencies face many challenges.One of them is the interaction between managers and IT people.Our evidence-based study describes psychological background that misunderstanding.The research shows students different faculties have same attribution year by (between 2018-2020, three academic years) but they differ significantly faculty.The total sample was examined (n=2305) we found differences in students' personalities, i.e. their level extraversion which could be basics all...
This paper aims at presenting the findings and sharing experiences of a case study whose data were gathered from an experimental MOOC (massive open online course) platform.The content was designed with end view favoring media-based education, students' activities, their interactive communication.The main advantage devised system is that students able to learn using mother tongue, Hungarian.This research involved 208 students, enabling authors test following variables by applying statistical...
The decay properties of the 3424-keV ${1}^{\ensuremath{-}}$ state in $^{142}\mathrm{Nd}$, which has long been interpreted as a member quadrupole-octupole two-phonon quintet, and lowest ${3}^{\ensuremath{-}}$ state, octupole phonon, have examined with ($n, {n}^{\ensuremath{'}}\ensuremath{\gamma}$) reaction. $\ensuremath{\gamma}$-ray branching ratios these states determined, level lifetimes measured by Doppler-shift attenuation method. These data provide strong support for interpreting having...
Epitaxial orthorhombic GdSi2 was grown by in situ vacuum annealing of a 50-nm Gd layer on 〈100〉 silicon. The epitaxy proved x-ray diffraction, electron and ion channeling measurements. lattice mismatch between the silicon substrate found to be 4%.
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...
Epitaxial hexagonal GdSi≊1.7 was grown by in situ vacuum annealing of 50 and 250 nm Gd layers on 〈111〉 silicon. The epitaxy investigated x-ray electron diffraction measurements.
Detailed new results are reported on the preparation and giant magnetoresistance (GMR) of electrodeposited Co-Fe/Cu multilayer films by using four different baths (sulfamate, sulfate, ammonium chloride sodium citrate type solutions). Two-pulse plating was applied for Co-Fe(5nm)/Cu(5nm) galvanostatic pulses deposition magnetic layer. The Cu layer potential electrochemically optimized each bath formulation analyzing current transients during non-magnetic layers. optimal found to be dependent...
Silver nanoparticles (Ag NPs) play important roles in the development of plasmonic applications. Combining these with graphene can yield hybrid materials enhanced light–matter interaction. Here, we report a simple method for synthesis graphene–silver nanoparticle hybrids on highly oriented pyrolytic graphite (HOPG) substrates. We demonstrate by scanning tunneling microscopy and local spectroscopy measurements electrostatic n-type doping contact silver. show UV-Vis reflectance investigations...
In order to explore the possible surfactant effect of Ag on formation electrodeposited multilayers, Co/Cu(Ag) multilayers were prepared by this technique and their structure giant magnetoresistance (GMR) investigated. The deposited from a perchlorate bath with various amounts Ag+ ions in solution for incorporating atoms into multilayer stack. Without addition, secondary neutral mass spectroscopy (SNMS) indicated well-defined composition modulation undermost Co/Cu bilayers. However, already...