Research in Physics

Research Groups and Laboratories

Vibrational Spectroscopy Laboratory

RESEARCH LAB

This is one of the most traditional experimental physics laboratories in the program, with about 40 years of operation. This laboratory has several Raman and infrared spectrometers that allow the performance of several spectroscopic measurements and meets the needs of researchers and students in the Department of Physics, in addition to operating with a multiuser philosophy, receiving researchers from chemistry, pharmacy, dentistry, medicine, biology , geology, among others.

Nanoscopy Laboratory

RESEARCH LAB

This laboratory has two atomic force microscopes, which perform volumetric and micro elasticity measurements. In addition, a TERS / SNOM system is being installed. This experimental device is in the final stage of implementation, with a complete optical system and Raman (Andor) spectrometer in operation, a pneumatic table, an RHK controller, an individual APD photon counter and an AFM harvester head manufactured by researchers from this department in collaboration with national and international groups. Such a system will enable optical information with AFM resolution and will be a fundamental tool to increase research on nanomaterials and nanobiotechnology that are being developed at UFC and form competitive human resources in the fields of advanced microscopy and nanoscience. It is a different project because it involves scientific instrumentation.

Thermal Analysis Laboratory

RESEARCH LAB

This laboratory consists of two differential scanning calorimetry equipment DSC Phoenix and DSC Maia (Netzsch) with accessories that allow them to reach cryogenic temperatures. We also have two simultaneous calorimetry and thermogravimetry systems (DSC / TG), each coupled to an infrared spectrometer to analyze the released gases. A Leica petrographic microscope with a Linkam heating plate, allows thermo-microscopy tests to be carried out.

Structural crystallography laboratory

RESEARCH LAB

A multiuser structural crystallography laboratory is in the process of being implemented. This laboratory already has a Bruker D8 Advance X-ray diffractometer for polycrystalline samples equipped with a fast detector and a camera for high and low temperatures. In addition, a diffractometer for monocrystalline samples has already been acquired with CT-INFRA resources, which should start operating in the coming months. This will be the first laboratory of this type in the N and NE and will supply an old regional demand, namely, the determination of the crystalline structures of the samples produced in our region, which is carried out almost exclusively in laboratories in the South or Southeast. The available infrastructure will allow investigating small and macro-molecules and will operate as a multi-user facility serving researchers from various graduate programs at UFC and other institutions in the North and Northeast regions of Brazil.

High Pressure Laboratory

RESEARCH LAB

The High Pressure Laboratory of the Physics Department at the Federal University of Ceará has three diamond-anvils of the National Bureau of Standard model; a pressure cell at the edge of diamonds with a membrane, capable of carrying out experiments with pressures ranging between 10 and 40 GPa; a pressure cell and low temperatures. In addition, the laboratory also contains auxiliary equipment, such as microscopes, a drill, an ultrasound cleaning equipment, supports for pressure cells, etc. With this infrastructure, research has been carried out with organic materials and inorganic materials.

Electrical Properties of Materials Laboratory

RESEARCH LAB

In this laboratory, various electrical properties of functional materials are investigated. Therefore, basic dielectric properties as a function of temperature and external magnetic field, such as dielectric constant and conductivity, are investigated by impedance spectroscopy. This type of investigation, together with a modeling of equivalent circuits, allows a better understanding of the role of dopants, the presence of interfacial layers, as well as the effect of particle size, particle shape and distribution on the resulting electrical behavior and processing-correlation resulting microstructure-property in a variety of ceramic materials. Also, the laboratory has a series of facilities for measuring functional electrical properties, such as pyroelectricity, magnetoresistance, magnetodielectricity, and photovoltaic effect.

Bioceramic Materials Laboratory

RESEARCH LAB

It consists of 5 ovens with controlled temperature, one of them with controlled atmosphere, an equipment for DSC measurements, a porosimeter, a spectrofluorimeter and a polarizing microscope. These equipments were acquired with research projects financed by CNPq.

Advanced Functional Materials Laboratory

RESEARCH LAB

This laboratory guides its activities in the preparation, characterization, functionalization and applications of (nano) carbonaceous materials (C-dots, nanostructured carbons and carbon based nanocomposites) and inorganic (nanotubes and inorganic nanotubes, (nano) anionic clays] within the context both carbon-based and inorganic (nano) materials are prepared by hydrothermal routes.For the preparation of carbonaceous (nano) materials, renewable precursor sources such as biomass, biomolecules extracted from biomass and / or agribusiness residues are used Nanomaterials are developed from the perspective of specific functionality for environmental, catalytic, agriculture and energy applications aiming at adding value and sustainable development.

Laboratory of Isotopic Physics / Hydrogeology

RESEARCH LAB

We have an excellent hydrogeochemistry laboratory and high-quality bacteriological analysis, whose purpose is to support the research carried out in the Isotopic Physics laboratory and provide specialized services to the management bodies of the water resources of the State of Ceará. This last laboratory provides one of the greatest regional impacts of the program in the context of the Northeast region. He studies, through his researchers and graduate students, the dynamics of waters in Chapada do Apodi, which is the largest center for the production of tropical fruits for export in the Northeast. A research, which has already been the subject of several master’s dissertations from the Graduate Program in Physics at UFC, is investigating the Vulnerability, sustainability and water quality in the Jandaíra and aquifers, in partnership with the State Secretariat of Water Resources, COGERH and the World Bank. This is a study with an immense impact on the economy of a large area of ​​the Brazilian Northeast region and one of the largest agro-poles for exporting tropical fruits in the country.

LOCEM

RESEARCH LAB

LOCEM – Laboratory of Research, Development and Innovation in Materials and Components for Applications in Radio Frequency (Rf), Microwave (Mw) and Millimeter Waves (Mm), has been working for some years in the area of ​​radio frequency PD&I (RF, f≤ 300MHz), microwaves (MW, 300MHz≤f≤30GHz) and millimeter waves (MM, 30GHZ≤f≤300GHz). The laboratory is dedicated to the research, development and innovation of new materials and components for use in telecommunications circuits because they present a broad scientific aggregate and industrial interest, mainly due to the growing demand for equipment with characteristics of miniaturization and mobility in civil and military use. . The laboratory has projects in RD&I with Brazilian and international federal institutions in addition to national and international companies. LOCEM has a robust infrastructure to perform impedance spectroscopy measurements with different impedance and network analyzers to investigate the different frequency ranges of interest.

X-ray diffraction Laboratory

RESEARCH LAB

This laboratory has two X-ray diffractometers for polycrystalline samples (DMAXB – Rigaku and XPert Pro MPD – Panalytical) and an X-ray fluorescence system (ZSXMini II – Rigaku) ​​for quantification of elements from Fluor to Uranium.

Complex Systems Laboratory

RESEARCH LAB

This research laboratory focuses on the activities at the interface of Physics with Cognitive Sciences (Psychology, Linguistics, Philosophy) and Informatics on the following themes: i) Relationship of eye movement and brain electrical activity; ii) Visual-spatial perception of images and texts; iii) Image recognition and its relationship with short and long term memory; iv) Physical-statistical patterns of eye behavior; v) Neurophysiology of normal and pathological individuals; vi) Functional neuroanatomy of language – neurophysiological correlates of the processing of different cognitive capacities; viii) Interaction of semantic processes with emotional processes in the construction of language concepts.

UFC Analytical Center

RESEARCH LAB

The Graduate Program in Physics, with Prof. Antônio Gomes de Souza Filho as coordinator, and with the support of Prof. Amauri Jardim de Paula, hosts the UFC Central Analytical Institutional project, a multi-user infrastructure laboratory in the fields of electron and optical microscopy.

Sample preparation infrastructure

RESEARCH LAB

The Graduate Program has made great efforts to have synthesis laboratories to produce samples that allow it to address problems at the frontier of condensed matter physics. In this way, using resources from FUNCAP-CE’s Laboratory Modernization program, the Physics Department’s Crystal Growth laboratory (physical space, floor, painting, electrical installations, refrigeration and equipment) was completely renovated. This laboratory has all the structure ready for the growth of crystals of various types (amino acids, drugs, multiferroics, among others) that are used in the research of students and researchers of the Graduate Program in Physics at UFC. The Laboratory for preparing carbon nanotubes, graphenes and C-dots uses CVD (Nanotube Growth System 1ST-Nano CVD) and hydrothermal methods has also recently been expanded. These facilities are fully operational, where we operate an oven with an atmosphere and controlled flow of gases such as H2, methane, argon, ethylene and oxygen. The Laboratory has a vacuum line for carrying out carbon nanotube functionalization reactions using different compounds, in addition to reactors, ultra-centrifuge and rheometer.

LabInitio Laboratory

RESEARCH LAB

This laboratory, under the coordination of prof. Valder Freire, uses DFT calculations for modeling various systems and has about 30 computers, 10 of which with i7 bi-processors with 32 processing cores each and 128 GRAM, 10 with 16 processing cores and 64 GRAM, and 10 i5 with 8 processing cores and 32 GRAM; the average hard disk data storage capacity is 1 TB on each computer. DFT, Gaussian, CASTEP, Discovery programs are licensed.

Condensed Matter Theory Group

RESEARCH GROUP

This group manages three clusters of high-performance computers: Kratos equipped with 44 nodes and 164 cpu-cores, Perseus with 13 nodes and 104 cpu-cores and Hope – 174 nodes, with a total of 348 cpu-cores. All clusters have at least 8 Gb of RAM per computer. Each cluster has a storage capacity greater than 1Tb. Together, the three clusters provide more than 600 cpu-cores to researchers and students in the program for computer simulations.

Numerical Simulation of Heavy Oil Reservoirs Laboratory

RESEARCH LAB

It has a cluster composed of 32 computers and 16 workstations, which is part of the computational infrastructure of the Department of Physics at the Federal University of Ceará, and works in its own building with 250m2 of built area. This Laboratory is dedicated to Computational Physics in general, and in particular to the study through numerical simulations of problems modeled by partial differential equations. Our studies include problems of Computational Fluid Mechanics and Statistical Mechanics. In addition to the development of our specific codes, we also use computational tools such as “Open Source” such as OpenFOAM, FEniCS and Palabos

Computational Fluid Dynamics Laboratory

RESEARCH LAB

This laboratory has the necessary computational resources to study transport phenomena in irregular environments and a laboratory where studies are carried out on the recovery and exploration of heavy oil in thin geological structures.

Coherent Systems Simulation Laboratory

RESEARCH LAB

This laboratory has 8 high performance computers and supports the numerical studies of students and researchers in the field of Quantum Field Theory, Gravitation, and Condensed Matter Applications.

Solid-Biological Interface Group – SolBIN

RESEARCH GROUP

The SolBIN group studies and mathematically models numerous bio-physicochemical phenomena at the interface of matter in the solid state. As an example, one can mention phenomena such as the growth of bacteria and cells on solid surfaces, the interactions of nanometric particles with the human organism, the process of fossilization of animals and the growth of plants, among others. The group has expertise in thermodynamics, colloids, optical and electronic microscopy, image processing, machine learning and natural language processing. The group has already made important contributions in the fields of medicine, dentistry, microbiology, chemistry, materials engineering, robotics, paleontology and agronomy.

Theoretical Physics Group

RESEARCH LAB

The UFC Theoretical Physics group has a focus on high energies, especially physics of extra dimensions, gravitation, topological theories, string theory and algebraic renormalization.

Biological and Soft Matter Physics Group

RESEARCH GROUP

The Biological and Soft Matter Physics Group focuses on basic research at the interface among physics, biology and chemistry with possible applications in engineering and medicine. In the development of such interdisciplinary studies, we use experimental techniques, analytical models and computer simulations in order to advance on topics that today are on the frontier of knowledge. As an example of a study in soft matter physics, we investigate the microscopic origin of viscoelastic constitutive relations, i.e., how molecular properties influence the rheological responses in soft materials. As an example of a study in biological systems, we investigate what we call “Cell Physics”, more specifically, we are interested in describing the rheology of living cells and their correlations with biological functions, both in healthy as well as disordered cells, like cancer.

Mechanics Laboratory

TEACHING LABORATORY

This laboratory with 7 benches for experimental mechanics and thermology classes, has equipment for practices on: caliper, micrometer, simple pendulum and physical pendulum, experiments with air rails, free fall, flat movement, densimetry, balance, Hooke’s law, speed of sound, thermometric scales, thermal expansion, heat propagation, specific heat and calorimetry, angular momentum, energy conservation, etc.

Electricity Laboratory

TEACHING LABORATORY

This laboratory with 7 benches for experimental classes in electromagnetism and basic electronics, has the following equipment: Van de Graaf generators, analog and digital multimeters of various models, analog and digital oscilloscopes, wave function generators, regulated continuous voltage sources and alternating, variacs, direct current sources, Arduino assemblies and a variety of electronic components that allow a multitude of experiments in electricity and magnetism and basic electronics.

Optics Laboratory

TEACHING LABORATORY

This laboratory with 7 benches for experimental optics classes, has equipment for practices on the nature of light, such as: reflection, refraction, flat and spherical mirrors, thin lenses, prisms, colors, the human eye its defects and corrections, polarization , diffraction, interference, etc.

Modern Physics Laboratory

TEACHING LABORATORY

This laboratory with benches equipped with microcomputers for data acquisition for experimental classes, has sets of equipment to perform the following practices: Michelson interferometer, determination of the electron charge / mass ratio, Millikan experiment, blackbody radiation, effect photoelectric, determination of Planck’s constant, Franck-Hertz experiment, electron diffraction, determination of atomic spectra of different elements, experiments with microwaves, etc.

Engineering Physics Laboratory

TEACHING LABORATORY

This laboratory dedicated to assisting students from different engineering courses, has equipment for practices on: measuring instruments, simple pendulum, experiments with the air track, balance, densimetry, speed of sound, Hooke’s law, thermal expansion, calorimetry , electrical measurements, etc.

Instrumentation Laboratory

TEACHING LABORATORY

This laboratory has equipment and tools for maintenance in general, construction of prototypes, development of practices, support for students and teachers from UFC and public schools, creation of low-cost experiments and development of experimental projects for teaching physics.

Water and Oil Laboratory

RESEARCH LAB

Located in the Physics Department – Block 928. The laboratory was assembled and equipped, according to the dimension of the University’s engineers and architects for the F-0200 project. It has an ICARE 06 Simulator, French equipment responsible for the injection of fluids in porous media.