A5058985742- Iron-based superconductors research
- Physics of Superconductivity and Magnetism
- Superconductivity in MgB2 and Alloys
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Corporate Taxation and Avoidance
- Rare-earth and actinide compounds
- Superconducting Materials and Applications
- Nuclear reactor physics and engineering
- Intellectual Capital and Performance Analysis
- High Entropy Alloys Studies
- Additive Manufacturing Materials and Processes
- Thermal Expansion and Ionic Conductivity
- Magnesium Alloys: Properties and Applications
- Scientific Research and Discoveries
- Additive Manufacturing and 3D Printing Technologies
- Surface and Thin Film Phenomena
- Advanced Condensed Matter Physics
- Magnetic Properties of Alloys
- Particle accelerators and beam dynamics
- High-pressure geophysics and materials
- Diverse Scientific and Engineering Research
- Particle Detector Development and Performance
- Magnetic and transport properties of perovskites and related materials
Institute of High Pressure Physics
2014-2024
Polish Academy of Sciences
2010-2024
Tokyo University of Agriculture and Technology
2016
International Laboratory of High Magnetic Fields and Low Temperatures
2016
Warsaw University of Technology
2011-2015
University of Wollongong
2015
Hyper Tech Research (United States)
2015
Leibniz Institute for Solid State and Materials Research
2015
Jan Kochanowski University
2011-2012
European Organization for Nuclear Research
2011
Interaction cross sections and charged pion spectra in p+C interactions at 31 GeV/c were measured with the large acceptance NA61/SHINE spectrometer CERN SPS. These data are required to improve predictions of neutrino flux for T2K long baseline oscillation experiment Japan. A set collected during first run 2007 an isotropic graphite target a thickness 4% nuclear interaction length was used analysis. The inelastic production 257.2 +- 1.9 8.9 mb 229.3 9.0 mb, respectively. Inclusive negatively...
Spectra of positively charged kaons in p+C interactions at 31 GeV/c were measured with the NA61/SHINE spectrometer CERN SPS. The analysis is based on full set data collected 2007 a graphite target thickness 4% nuclear interaction length. Interaction cross sections and pion spectra already using same data. These new measurements combination published ones are required to improve predictions neutrino flux for T2K long baseline oscillation experiment Japan. In particular, knowledge kaon...
The yields of (anti)protons were measured by the NA49 Collaboration in centrality-selected Pb $+$ collisions at $40A$ and $158A$ GeV. Particle identification was obtained laboratory momentum range from 5 to 63 GeV$/c$ measuring energy loss $dE/dx$ time projection chamber detector gas. corresponding rapidity coverage extends 1.6 units midrapidity into forward hemisphere. Transverse-mass spectra, dependences average transverse mass, density distributions studied as a function collision...
We look for fluctuations expected the QCD critical point using an intermittency analysis in transverse momentum phase space of protons produced around midrapidity 12.5 % most central C+C, Si+Si and Pb+Pb collisions at maximum SPS energy 158A GeV. find evidence power-law data. The fitted exponent $$\phi _{2} = 0.96^{+0.38}_{-0.25}\text { (stat.)}$$ $$\pm $$ $$0.16\text (syst.)}$$ is consistent with value fluctuations. Power-law had previously also been observed low-mass $$\pi ^+ \pi ^-$$...
A series of FeSe0.5Te0.5 bulk samples have been prepared through the high gas pressure and high-temperature synthesis (HP-HTS) method to optimize growth conditions, for first time investigated their superconducting properties using structural, microstructure, transport, magnetic measurements reach final conclusions. Ex-situ in-situ processes are used prepare under a range pressures Ta-tube without Tatube. The parent compound synthesized by convenient at ambient (CSP) exhibits transition...
This paper describes a strategy for creating highly oriented crystalline-amorphous composites using the laser powder bed fusion (LPBF) process. The involves novel two-stage melting approach and ultra-high-pressure hot isostatic pressing (HIP) on well-known AMZ4 (Zr59.3Cu28.8Al10.4Nb1.5) equiatomic CuZr amorphous alloys. experiments demonstrate that by fine-tuning parameters, allowed to obtain parts with purely material create geometry-specific microstructural design based laminate...
Production of the ${K}^{*}{(892)}^{0}$ and ${\overline{K}}^{*}{(892)}^{0}$ resonances was studied via their ${K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ ${K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ decay modes in central $\mathrm{Pb}+\mathrm{Pb}$, $\mathrm{Si}+\mathrm{Si}$, $\mathrm{C}+\mathrm{C}$, inelastic $p+p$ collisions at 158$A$ GeV($\sqrt{{s}_{NN}}=17.3$ GeV) with NA49 detector CERN SPS. Transverse momentum rapidity distributions were measured total yields estimated. The yield...
The enhanced performance of superconducting FeSe0.5Te0.5 materials with added microsized Pb and Sn particles is presented. A series (FeSe0.5Te0.5 + xPb ySn; x = y 0-0.1) bulks are fabricated by solid-state reaction method characterized through various measurements. very small amount additions enhance the transition temperature (Tconset) pure 1 K, sharpening improving metallic nature in normal state, whereas larger metal reduce Tconset broadening transition. Microstructural analysis transport...
AeAFe4As4 (Ae = Ca, A K; 1144) having a transition temperature of 35 K is stoichiometric family iron-based superconductors (FBS). Here, we present detailed study high-pressure synthesis CaKFe4As4 bulks to investigate the impact these conditions on superconducting properties 1144 family. Additionally, samples are also prepared by conventional method at ambient pressure (CSP) and studied influence impurities CaKFe4As4. Structural, microstructural, transport magnetization measurements have been...
A systematic investigation has been performed by synthesis and comprehensive characterization of a series SmFe1-xCuxAsO0.8F0.2 bulks (x = 0 to 0.2). These samples are well characterized structural, Raman spectroscopy, microstructural, transport, magnetic measurements, supplementary calculations within density functional theory (DFT). The parent compound, SmFeAsO0.8F0.2 (Sm1111), exhibits superconducting transition temperature (Tc) approximately 54 K. lattice volume (V) is increased with Cu...
Measurements of charged pion and kaon production are presented in centrality selected Pb+Pb collisions at 40A GeV 158A beam energy as well semi-central C+C Si+Si interactions GeV. Transverse mass spectra, rapidity spectra total yields determined a function centrality. The system-size dependence relative strangeness nucleus-nucleus derived from the data here published for energy. At both energies steep increase with is observed small systems followed by weak rise or even saturation higher...
Unreacted MgB2 wires were made at Hyper Tech Research, USA by a continuous tube forming and filling method using mixtures of Mg B with without SiC powder additions. All the underwent hot isostatic pressure (HIP) treatment Institute High Pressure. The first part wire was annealed 1 GPa, second 0.1 MPa. In this work, we show influence high on critical current density (Jc), pinning force (Fp), temperature (Tc), irreversible magnetic fields (Birr) Fp scaling microstructure wires. results...
In this article, a method allowing for the detection of damage in iron-based superconducting bulks and MgB2 wires is presented. were made situ material with ex barrier. The iron superconductor studied was Ba(Fe,Co)2As2. This surrounded by Nb barrier placed inside an tube. All samples annealed isostatic pressure 1 GPa. Transport measurements using four-contact probe. transition from into resistive state (first transition) observed at temperature range 5 K to 10 can be attributed either or...
In this study we show that dominant point pinning mechanisms in SiC doped MgB2 wires can be obtained by annealing high isostatic pressure. The results indicate the centers increase critical current density medium and magnetic fields, but not at low fields. addition, our shows mechanism changes from to surface type with of An wire heat treated a pressure 1.4 GPa 100 A mm−2 13 T 4.2 K. Scanning electron microscope studies increases material, eliminates voids, allows for small Si precipitates...
The high-pressure growth technique generally plays an important role in the improvement of sample quality and enhancement various physical magnetic properties materials. high gas pressure provides a large space (10–15 cm) to grow kinds In this paper, we introduce high-temperature synthesis (HP-HTS) that is present at our institute applied process different superconducting materials, particularly iron-based superconductors. More details working principle HP-HTS are discussed. We have also...
Production of deuterons and antideuterons was studied by the NA49 experiment in 23.5% most central Pb+Pb collisions at top CERN Super Proton Synchroton (SPS) energy sNN=17.3 GeV. Invariant yields for d¯ d were measured as a function centrality center-of-mass rapidity range −1.2<y<−0.6. Results d¯(d) together with previously published p¯(p) measurements are discussed context coalescence model. The parameters B2 deduced transverse momentum pt collision centrality.2 MoreReceived 12 November...
MgB2 precursor wires were prepared using powder in tube technique by Institute of High Pressure PAS Warsaw. All samples annealed under isostatic pressure generated liquid Argon the range from 0.3 GPa to 1 GPa. In this paper, we show effects different processing routes, namely, cold drawing (CD), rolling (CR), hot (HIP) and doping on critical current density (Jc), pinning force (Fp), irreversible magnetic-field (Birr), temperature (Tc), n value, dominant mechanism MgB2/Fe with ex situ...
This paper demonstrates the effects of hot isostatic pressure (HIP) on structure and transport critical parameters in situ MgB2 wires without a barrier. Our results show that only HIP nano-boron allow formation more high-field pinning centers, which lead to increase current density (J c) at high applied magnetic fields. Nano-boron annealing low J c field. indicates nano-particles create centers. In addition, improves connection between grains. Scanning electron microscope increases reaction...