graduate at Physic from Universidade de Brasília (1972), master's at Physic from Universidade de Brasília (1975) and ph.d. at Physic from Universidade de São Paulo (1978). Has experience in Physic, focusing on Physics Of The Condensed State Of Substance, acting on the following subjects: gaas, metastability, nanoestrutura, clusters and complex defects. (Source: Lattes Curriculum)
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Research in the field of Materials Science has advanced enormously in recent years, from an essentially applied, engineering-related approach to a position where it has great impact in other areas, including Physics, Chemistry, and Biology. This is mostly due to the advancement of theoretical and experimental techniques that have allowed us to probe, and interact with matter at the atomic…
Among different experimental techniques of surface analysis with atomic resolution, the set of techniques broadly known as "scanning probe microscopies" (SPM) stand out. In particular, "scanning tunneling microscopy" (STM) and "atomic force microscopy" (AFM), became very popular techniques in this field. Although atomic and subatomic resolution in STM has been achieved since the 1980's, c…
Purchase of an HPC Cluster (8 nodes with 256 processors and 192 GB RAM each), mainly to meet the demands of three National Laboratories of the Brazilian Center for Research in Energy and Materials (CNPEM), Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Bioethanol Science and Technology Laboratory (CTBE) and Brazilian Biosciences National Laboratory (LNBio) in projects i…
Topological insulators are a class of materials in which there is a strong coupling between momentum and spin degrees of freedom. This leads to a fundamentally new state of matter in, which the presence of a surface creates a topologically protected metallic state. Surface states make electronic motion insensitive to scattering by impurities.Our Project with Prof. Schmidt deals primarily…
(Only some records are available in English at this moment)
The current interest in topological materials is transiting from a more fundamental exploration tothe direct application and design of new functionalities. Spintronics is the key application oftopological insulators, given its helical surface states protected from backscattering by symmetry, namely a spin-momentum locking. Currently, studies focused only on the existence of thetopological…
Nano-heterostructures composed of 2D perovskites, MXenes, among other materials present promising electronic and optical properties for applications such as solar cells, photodetectors, and other optoelectronic devices. Herein, the present research project seeks to perform a comprehensive study based on density functional theory (DFT) and data-driven approaches such as machine learning to…
We call topological quantum states when the wave function has a distinct character that can be specified by a topological invariant, a discrete quantity that remains unchanged under adiabatic transformations. Topological insulators is a class of materials where there is a strong coupling between the momentum and degree of freedom of the spin. Topological insulators (TI) are materials that…
Recently, the climatic and economic changes of the world have lead to a search for materials more energetically efficient. Within this scenario, two-dimensional materials and topological phases of matter are prominent candidates to fulfill this task. Currently, topological materials are transiting from the theoretical physics to the experimental chemistry, where focused applications regar…
There is a growing concern of the scientific community and regulatory agencies on the potential impacts of nanomaterials on human and environmental health, especially due to the expansion of nanotechnology industry. Several factors, such as modification of nanomaterials in the environment via dissolution processes, aggregation, formation of biomolecular coronas and interactions with othe…
Topological Insulators (TI) are insulators with metallic edges when interfaced with vacuum or trivial insulator (TI'). The wavefunction acquires geometric phases distinct from TI' when run over a closed cycle in the Brillouin zone (BZ), defining topological invariants leading to such edges.The first known system of this kind, the Quantum Hall effect (QH) presents perfect metallic wires at…
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When released into the environment, nanomaterials engage in interactions with the present organic and metals pollutants altering their bioavailability and resulting in complicated mixture toxicity effects. Biomolecular coronas formed upon the release significantly affect this process, competing with pollutants for surface interaction sites or multiplying the possibilities of interactions.…
Materials are represented by their atoms, composition, and structure (ACS). Materials with different ACS descriptions present a different set of properties. However, there is a complex and intriguing relationship between the ACS and materials' properties. Machine learning can explore such relations and accelerate the evaluation of properties by using fingerprints of known materials to fin…
A main basic-science objective of spintronics is to understand the mechanisms by which it is possible to achieve efficient control of both spin configurations and spin currents. The generation of spin currents, spin injections and spin conservation is mediated by the Spin-Orbit Coupling (SOC) mainly via the Rashba effect and/or the topological effects. Therefore, the search for systems wi…
| 1 / 1 | Ongoing research grants |
| 33 / 16 | Completed research grants |
| 3 / 3 | Ongoing scholarships in Brazil |
| 23 / 10 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 2 / 2 | Completed scholarships abroad |
| 63 / 33 | All research grants and scholarships |
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CV Lattes
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