Check the schedule of the 21st Brazilian Workshop on Semiconductor Physics. We recommend checking this page regularly to stay updated on the event schedule.

02 September

Time Activity Speaker
08h00 – 09h05 Registration –
09h05 – 09h20 Opening Ingrid D. Barcelos
  • Chair of the Session: Rodrigo Capaz
09h20 – 10h00  CNPEM – Brazilian Center for Research in Energy and Materials Antônio José Roque da Silva
10h00 – 10h20 Oral Presentation – Indirect Exchange and RKKY Interactions between Magnetic Impurities in Two- and Four-Band Weyl Systems Luiz Gregório Dias
10h20 – 10h40 Oral Presentation – Madelung’s approach for obtaining the hydrodynamic model of plasmon-polaritons in anisotropic systems André Chaves
10h40 – 11h10 Coffee Break
  • Chair of the Session: Florian Dirnberger
11h10 – 11h50 Invited Speaker – Low carrier mobility next to thermal gate oxides in Silicon Carbide: What’s wrong with SiC- MOSFET? Thomas Jung
11h50 – 12h10 Oral Presentation – Detection of Dirac fermions in crystalline topological insulators using magnetotransport measurements Marcellos Peres
12h10 – 12h30 Oral Presentation – Emergent Electromagnetism in Elemental Tellurium Carsten Enderlein
12h30 – 13h10 Invited Speaker – Quantum Spin Hall Effect in Antimonide-based type-II Heterostructures Fabian Hartmann
13h10 – 14h30 Lunch –
  • Chair of the Session: Cláudio Radtke
14h30 – 15h10 Invited Speaker – Scanning tunneling spectroscopy of 2D semiconductors and nanomembranes Angelo Malachias de Souza
15h10 – 15h30 Oral Presentation – Growth and characterization of new 2D semiconductor materials Abner Siervo
15h30 – 15h50 Oral Presentation – Unlocking Quantum Materials through Synchrotron Techniques under Extreme Thermodynamic Conditions Ricardo Reis
15h50 – 16h00 Young Researcher – Hydrodynamic of electron-hole fluid in a mesoscopic GaAs channel Marco Patricio
16h00 – 16h10 Young Researcher – Evidence of Thickness-dependent Surface Induced Ferroelectricity in Few-layer Germanium Sulfide obtained via Scanning Tunneling Spectroscopy Rafael Barreto
16h10 – 16h40 Coffee Break –
  • Chair of the Session: André Chaves
16h40 – 17h20 Invited Speaker – Quantum oscillations José Carlos Egues
17h20 – 17h40 Oral Presentation – Novel aspects of Anderson localization: scaling invariance on topological Anderson insulators, and minimal model for the quantum boomerang effect Gerson Ferreira
17h40 – 17h50 Young Researcher – Phase transitions and scale invariance in topological Anderson insulators Bryan Assunção
17h50 – 18h00 Young Researcher – Noncentrosymmetric two-dimensional Weyl semimetals in porous Si/Ge structures Emmanuel Lopes
18h00 – 18h10 Young Researcher – Many-body effects on the quasiparticle band structure and optical response of single-layer penta-NiN2 Enesio Marinho Jr
18h10 – 18h20 Young Researcher – Directional dependence of the electronic and transport properties of Biphenylene under strain conditions José Padilha
18h20 – 18h30 Free Time –
18h30 – 20h30 Cocktail –

03 September

Time Activity Speaker
  • Chair of the Session: Yara Gobato
09h00 – 09h40 Invited Speaker – Quantum computing with spins in silicon André Saraiva
09h40 – 10h20 Invited Speaker – Single quantum coherent spins in hexagonal boron nitride at ambient conditions Carmem Gilardoni
10h20 – 10h40 Oral Presentation – Temperature dependent temporal coherence of metallic-nanoparticle-induced single-photon emitters in a WSe2 monolayer Barbara Rosa
10h40 – 11h10 Coffee Break –
  • Chair of the Session: Angelo Malachias
11h10 – 11h50 Invited Speaker – Towards lasing from hexagonal SiGe heterostructures Erik Bakkers
11h50 – 12h10 Oral Presentation – Tuning band structure and optical properties by rolling up III-V heterostructures Christoph Deneke
12h10 – 12h30 Oral Presentation – Quantum Dots by Droplet Etching Epitaxy as sources of highly entangled photon pairs Saimon Covre da Silva
12h30 – 13h10 Invited Speaker – Energy efficient Organic Light Emitting Diodes Paloma dos Santos
13h10 – 14h30 Lunch –
  • Chair of the Session: Diego Rabelo
14h30 – 15h10 Invited Speaker – Exploring the Frontier of Flat Band Materials: the case of Nb3SBr7 Lara Teles
15h10 – 15h30 Oral Presentation – Realistic effective-mass model for III-V Zincblend Semiconductors Guilherme Sipahy
15h30 – 15h50 Oral Presentation – III-Nitrides in the 2D structures and GaN/AlN 2D lateral interfaces: Structural and electronic properties from ab initio calculations Horácio Alves
15h50 – 16h10 Flash Talks 1 –
16h10 – 17h20 Coffee Break + Poster Session –
17h20 – 18h10 Tutorial – Magnetic field effects on excitons in two dimensional semiconductors Andrey Chaves

04 September

Time Activity Speaker
  • Chair of the Session: Joaquim Mendes
09h00 – 09h40 Invited Speaker – Effects of atmospheres in the wavelength-dependent photoconductivity of Co3O4 Marcio Peron Godoy
09h40 – 10h00 Oral Presentation – Co-existence of surface electronic confinement and topological states in Sb4Te3 Rogério Paniago
10h00 – 10h20 Oral Presentation – X-ray photoemission spectroscopy at IPE beamline: from materials to devices Tulio Rocha
10h20 – 10h40 Oral Presentation – Universal Machine Learning Interatomic Potentials? Challenges and Directions for Semiconductor Materials’ Surfaces Gabriel Schleder
10h40 – 11h10 Coffee Break –
  • Chair of the Session: Luis Gregório
11h10 – 11h50 Invited Speaker – Controlling electron pairing and charge density waves by uniaxial strain in kagome lattices Sérgio Ulloa
11h50 – 12h10 Oral Presentation – A Coarse-Grained Geometric Approach to Identify Topological Phases in Three-Dimensions Caio Lewenkopf
12h10 – 12h30 Oral Presentation – Structure-driven phase transitions in paracrystalline topological insulators Marcello Barbosa
12h30 – 13h10 Invited Speaker – Raman response of the charge density wave in cuprate superconductors Maria C Aguiar
13h10 – 14h30 Lunch –
  • Chair of the Session: Bruno Carvalho
14h30 – 15h10 Invited Speaker – Valley Zeeman physics in van der Waals matter Paulo Faria Jr
15h10 – 15h30 Oral Presentation – Confinement and transport properties of moiré excitons in twisted van der Waals hetero-bilayers Diego Rabelo da Costa
15h30 – 15h50 Oral Presentation – Novel Materials from non-van der Waals Solids Douglas Galvão
15h50 – 16h00 Young Researcher – From Layered Minerals to 2D Magnets – How Synchrotron Radiation Can Save Us in Understanding the Origin of Proximity Effects Raphaela de Oliveira
16h00 – 16h10 Young Researcher – Charge dynamics in the 2D/3D semiconductor heterostructure WSe2/GaAs Rafael Lopez
16h10 – 16h40 Coffee Break –
  • Chair of the Session: Paloma dos Santos
16h40 – 17h20 Invited Speaker – The polymorphous nature of halide perovskites Gustavo Dalpian
17h20 – 17h40 Oral Presentation – Characterization of metal halide perovskites at CARNAÚBA/SIRIUS Rodrigo Szostak
17h40 – 17h50 Young Researcher – Multimodal Characterization of Metal Halide Perovskite Films: Correlating Microstructure, Chemical Composition, and Optoelectronic Properties Francisco da Silva
17h50 – 18h00 Young Researcher –Organic Semiconductors as Handles for Optical Tweezers Experiments: Trapping and Manipulating Polyaniline (PANI) Microparticles  Kairon de Oliveira
18h00 – 18h10 Young Researcher – Terahertz spectroscopy applications: unveiling carrier and lattice dynamics of materials Nicolas M. Kawahala
18h10 – 18h30 Transfer –
18h30 – 22h00 Dinner –

05 September

Time Activity Speaker
  • Chair of the Session: Paulo Faria
09h00 – 09h40 Invited Speaker – Correlated quantum phases of spatially indirect excitons in heterostructures François Peeters
09h40 – 10h20 Invited Speaker – Exciton transport driven by spin excitations in an antiferromagnet Florian Dirnberger
10h20 – 10h40 Oral Presentation – Optical and magneto-optical properties of magnetic van der Waals heterostructures Yara Gobato
10h40 – 11h10 Coffee Break –
  • Chair of the Session: Abner Siervo
11h10 – 11h50 Invited Speaker – Growth of highly mismatched thin films and heterostructures Sukarno Ferreira
11h50 – 12h10 Oral Presentation – Photoinduced Growth of Tellurium Nanosheets on a Cd1-xMnxTe matrix Eduardo Nery
12h10 – 12h30 Oral Presentation – Synthesis and ionic liquid functionalization of transition metal dichalcogenides Claudio Radtke
12h30 – 13h10 Invited Speaker – Study of self- assembly structures of carbon quantum dots Lara Lavelli
13h10 – 14h30 Lunch –
  • Chair of the Session: Teldo Pereira
14h30 – 15h10 Invited Speaker – Exploring spin and orbital pumping in magnetic heterostructures Antônio Azevedo
15h10 – 15h30 Oral Presentation – Higher-order Fe-Fe exchange interactions in magnetically ordered 2D Fe0.2Ni0.8/Ni(001) and Fe0.3Ni0.7/Ni(001) alloy systems Elie Albert Moujaess
15h30 – 15h40 Young Researcher – Magneto-optical properties of TMD monolayers induced by defects Frederico de Souza
15h40 – 15h50 Young Researcher – Magneto-optical manipulation of the excitonic complexes in WSe2/CrSBr heterostructures José Roberto Toledo
15h50 – 16h10 Flash Talks 2 –
16h10 – 17h20 Coffee Break + Poster Session –
17h20 – 18h10 Tutorial – Probing Electronic Structure of Quantum Materials with ARPES and Synchrotron Radiation at SAPÊ beamline in SIRIUS Wendell Simões

06 September

Time Activity Speaker
  • Chair of the Session: Elie Moujaess
09h00 – 09h40 Invited Speaker – Generation and detection of valley-polarized currents in transport experiments Antônio Manesco
09h40 – 10h00 Oral Presentation – Electrical Detection of Chirality in Twisted Bilayer Graphene Dario Bahamon
10h00 – 10h20 Oral Presentation – Navigating Dynamic Nonlinearities and Precision Challenges in the Characterization of Thin Semiconductor Systems Victor Richard
10h20 – 10h40 Oral Presentation – Suppressed Kondo screening in two-dimensional altermagnets Edson Vernek
10h40 – 11h10 Coffee Break –
  • Chair of the Session: Bárbara Rosa
11h10 – 11h50 Invited Speaker – Shaking up topological crystals with chiral phonons Félix Hernandez
11h50 – 12h10 Oral Presentation – Acoustic modulation of excitonic complexes in hBN/WSe2/hBN heterostructures Odilon D. D. Couto Jr
12h10 – 12h30 Oral Presentation – Raman and Photoluminescence Spectroscopies of in-plane MoSe2-MoS2 Heterostructures grown by chemical vapor deposition Benjamin Fragneaud
12h30 – 12h50 Oral Presentation – Quantitative point defect density study in atomically-thin materials Bruno Carvalho
12h30 – 13h10 Closing remarks Ingrid D. Barcelos
13h10 – 14h30 Lunch –
14h30 – 17h20 CNPEM Visit –