A5039914816- Shape Memory Alloy Transformations
- Heusler alloys: electronic and magnetic properties
- Magnetic and transport properties of perovskites and related materials
- MXene and MAX Phase Materials
- Magnetic Properties and Applications
- Metallic Glasses and Amorphous Alloys
- Solidification and crystal growth phenomena
- Wireless Power Transfer Systems
- Advanced Welding Techniques Analysis
- Advanced Fiber Optic Sensors
- Advanced MEMS and NEMS Technologies
- Anodic Oxide Films and Nanostructures
- High Entropy Alloys Studies
- Magnetic properties of thin films
- Advanced Measurement and Metrology Techniques
- Magnetic and Electromagnetic Effects
- Sensor Technology and Measurement Systems
- Magnesium Alloys: Properties and Applications
- X-ray Diffraction in Crystallography
- Mechanical and Optical Resonators
- Phase-change materials and chalcogenides
- Acoustic Wave Resonator Technologies
- Advanced Measurement and Detection Methods
- Metal-Organic Frameworks: Synthesis and Applications
- Electromagnetic wave absorption materials
University of Pavol Jozef Šafárik
2013-2024
Universidad de Oviedo
2017-2020
Institute of Physics of the Slovak Academy of Sciences
2017
Cylindrical nanowires made of Co2FeSn Heusler alloy with high spin polarization have been synthetized via template-assisted electrochemical deposition in nanoporous anodic alumina membranes. Their microstructure and morphology characterized by situ studies X-ray diffraction, together scanning transmission electron microscopy techniques. The basic structural magnetic characterization revealed a B2-type cubic ordered structure lattice parameter around 5.8 Å the [110] direction, preferably...
Cylindrical Co2FeIn Heusler alloy nanowires are synthesized via template-assisted electrochemical deposition into the hexagonally self-ordered nanopores of hard-anodic alumina membranes. The electroplated nanowires, with 180 ± 20 nm in diameter and ∼14.5 μm length, exhibit a polycrystalline nature, they homogeneous composition. High-resolution transmission electron microscopy, selected area diffraction, X-ray diffraction analysis confirmed cubic A2 disordered phase ferromagnetic compound,...
Wire‐shaped materials are ideal form for rapid, cheap, and scalable production application. Herein, the most recent results on Heusler‐based cylindrical micro‐ nanowires reviewed, emphasizing spintronic, magnetocaloric, shape memory applications. how Heusler alloy's composition can be tuned to achieve a material with repeatable magnetic mechanical properties is showed. A wide range of possible compositions allows us tune structural transformation temperatures by alloying original few percent...
In this article, the downsizing of functional Heusler alloys is discussed, focusing on published results dealing with alloy nanowires. The theoretical information inspired fabrication novel nanowires that are presented in section article. Three were fabricated compositions Ni66Fe21Ga13, Ni58Fe28In14, and Ni50Fe31Sn19. Ni66Fe21Ga13 fabricated, aiming to improve stoichiometry previous Ni-Fe-Ga nanomaterials a behavior above room temperature. They exhibit phase transition at temperature ≈375 K,...
We report on fabrication, structural and magnetic properties of novel Heusler-type glass coated Ni2FeSi microwires that were prepared by the Taylor-Ulitovsky method, having a metallic nucleus diameter about 3.9 µm total sample 39 µm.This single step low cost fabrication technique offers to prepare up km glass-coated starting from few g cheap elements for diverse applications.The X-ray diffraction data indicates L21 crystalline structure (a = 5.563 Å), with possible DO3 disorder.Magnetic...
The structural phase transformation in a non-stoichiometric shape memory Fe42.8Mn27.6Ga29.6 Heusler glass-coated microwire was experimentally observed using indirect magnetic, permeability, and electrical resistance measurements. While the temperature dependence of magnetization revealed hysteresis during heating cooling process, magnetic loops point to change direction easy axis low- high-temperature phase. Additionally, unusual behavior permeability measurements are good agreement with...
We have studied the effect of Mn doping on structural and magnetic properties Co2FeSi Heusler alloy.Co2FeSi, Co2Mn0.25Fe0.75Siand Co2Mn0.5Fe0.5Sialloys were prepared by melt spinning technique which offers fast simple production large amount materials in a single step.The rapid quenching method provides an opportunity to prepare alloys with highly ordered L21 structure confirmed X-ray analysis all samples.Magnetic measurements revealed high Curie temperatures (> 1000 K) well defined easy...
The aim of the experimental and analytical work was to monitor analyze strains deflections steel cantilevers using a bistable glass-coated microwire, as contactless measurement method.For verification comparison, results obtained from applied microwire (Fe75Si9B10P5Tb1), standard resistance strain gauge dial indicator were used.Since used, has metallic (magnetic) core, verifying possibility separating influence parasitic external magnetic field measured deformations, first goal...