A5006624255- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Heusler alloys: electronic and magnetic properties
- Shape Memory Alloy Transformations
- Perovskite Materials and Applications
- MXene and MAX Phase Materials
- Optical properties and cooling technologies in crystalline materials
- Magnetic properties of thin films
- Multiferroics and related materials
- 2D Materials and Applications
- Advanced Thermoelectric Materials and Devices
- Rare-earth and actinide compounds
- Advanced Thermodynamics and Statistical Mechanics
- Magnetic Properties of Alloys
- Magnetic Properties and Applications
- Iron oxide chemistry and applications
- Luminescence Properties of Advanced Materials
- Electronic and Structural Properties of Oxides
- Quantum many-body systems
- Pigment Synthesis and Properties
- Inorganic Chemistry and Materials
- Theoretical and Computational Physics
- Quantum, superfluid, helium dynamics
Universidade Federal Fluminense
2021-2023
Universidade Federal do ABC
2019-2022
Centro Universitário Fundação Santo André
2020
Universidade Estadual de Campinas (UNICAMP)
2014-2018
Helmholtz-Zentrum Berlin für Materialien und Energie
2012
Full Heusler alloys display a wide range of physical phenomena with potential applications in different areas. However, researchers still struggle to overcome many limiting factors optimize their functional properties. Particularly, the poor mechanical properties X2YZ series undermine its exploration as shape memory and solid-state cooling materials. Recently, suppression p–d covalent hybridization characteristic these came up promising approach, resulting novel compounds displaying enhanced...
Methylammonium lead iodide (MAPbI<sub>3</sub>) is an important light-harvesting semiconducting material for solar-cell devices.
The correlation between structural and magnetic properties of $\mathrm{GdA}{\mathrm{l}}_{2}$, focusing on the role played by disorder in ordering how it influences magnetocaloric effect (MCE) are discussed. Micrometric-sized particles, consisting nanocrystallites embedded an amorphous matrix, were prepared a mechanical milling technique characterized means x-ray diffraction, scanning high-resolution transmission electron microscopy as well measurements function applied external field...
We have produced Fe-doped paramagnetic MAPbI3 microwires by using a novel strategy involving self-assembly growth process of [PbI6]4– octahedral chains in the presence liquid water. Structural and morphological studies confirmed that after dissociation recrystallization process, doped samples preserved both perovskite structure with tetragonal phase microwire shape, while X-ray photoelectron spectroscopy revealed mixed-valence Fe3+/Fe2+ ions negligible change PbI6 cage environment maximum...
Modeling quantum thermal machines provides a practical approach to describing the thermodynamic properties of technologies and devices. For this purpose, power-law potentials are often employed as working mediums cycles investigate concepts heat, work, efficiency. With in mind, we present results for Stirling Otto numerical modeling that use general power law potential with characteristic $q$ exponent. We calculate its energy spectra, showing it recovers traditional forms harmonic oscillator...
Obtaining Heusler alloys at the nanoscale with good crystallographic features is appealing for a large range of technological applications, from biomedical to spintronics devices. In particular, Fe2CrAl as bulk known present magnetic properties that are strongly sensitive chemical and physical constraints, such structural disorder composition. We report throughout structural, morphological, characterization nanoparticles obtained by pulsed laser deposition technique. The composed slightly...
In this work, the magnetic, magnetocaloric and structural properties of rare earth based GdAl2 intermetallic compound on nanometric scale were studied, focusing crystallite size dependence effect. The nanoparticles obtained in a mechanical milling process which alloys, previously synthetized an arc furnace under argon atmosphere, crushed inside planetary high energy ball system also atmosphere at different times. structure analyzed by X-ray diffraction, as well lattice strain values....
We have produced Fe-doped paramagnetic MAPbI3 microwires by using a novel strategy involving self-assembly growth process of [PbI6]4– octahedral chains in the presence of liquid water. Structural and morphological studies confirmed that after the dissociation recrystallization process, doped samples preserved both perovskite structure with tetragonal phase microwire shape, while X-ray photoelectron spectroscopy revealed presence mixed-valence Fe3+/Fe2+ ions negligible change PbI6 cage...