The Physics Graduate Program invites everyone to:
Defence of M.Sc. dissertation
Josué Lima Lopes
SIMULAÇÕES DE TEORIAS DE CAMPO PARA SISTEMAS MAGNÉTICOS
Defense Commitee
Prof. Dr. Lucas Nicolao – (president) – UFSC/FSC
Prof. Dr. Miguel Angelo Cavalheiro Gusmão – (external member) – UFRGS
Prof. Dr. Alejandro Mendoza Coto – (local member) – UFSC/FSC
Date: September 4, 2017 – monday – Time: 4:00 pm – Place: Sala 212 – Auditório do Departamento de Física
The Physics Graduate Program invites everyone to:
Qualifying Examination for Doctoral Thesis
Franciele Manoel da Silva
SOLUÇÃO NUMÉRICA DAS EQUAÇÕES DE CAMPO DA RELATIVIDADE GERAL PARA SISTEMAS COM SIMETRIA AXIAL
Defense Committee:
Prof. Dr. Celso de Camargo Barros Junior – (president) – UFSC/FSC
Prof. Dr. Eduardo Inacio Duzzioni – (local member) – UFSC/FSC
Prof. Dr. Alexandre Magno Silva Santos – (local member) – UFSC/FSC
Prof. Dr. Paulo Juliano Liebgott – (local member) – UFSC/FSC
Date: September 1, 2017 – friday – Time: 10:00 am – Place: Sala 114 – Sala de Reuniões do Departamento de Física
A Cristalografia Estrutural no Brasil
Lembraremos inicialmente que o primeiro cientista no Brasil foi José Bonifácio de Andrada e Silva, mineralogista de reputação internacional mais conhecido por sua participação na independência do Brasil. Será discutida a importância da Cristalografia Estrutural, tanto antes como após a descoberta da difração de raios X. Será analisada a evolução dos seus equipamentos e metodologias e sua implantação no Brasil através da ação de vários pesquisadores. Finalmente será apresentada uma breve visão do seu estágio atual no Brasil e as perspectivas para o futuro a nível nacional e internacional.
Data: 28/08, 13:30h
Local: Auditório do Espaço Físico Integrado (EFI).
Em julho deste ano a Profa. Yvonne foi homenageada pela International Union of Pure and Applied Chemistry (IUPAC) com o prêmio IUPAC-2017 Distinguished Women in Chemistry or Chemical Engineering Awards. Abaixo uma reportagem publicada na revista Pesquisa FAPESP.
Yvonne Primerano Mascarenhas: A senhora dos cristais
Física homenageada em congresso mundial de química começou na década de 1960 a estudar estruturas moleculares por meio de difração de raios X.
http://revistapesquisa.fapesp.br/2017/08/18/yvonne-primerano-mascarenhas-a-senhora-dos-cristais/
The Physics Graduate Program invites everyone to:
Defence of M.Sc. dissertation
Carleane Patrícia da Silva Reis
PROCESSOS CAPACITIVOS EM POLIANILINA ANALISADOS PELO MÉTODO DE ELEMENTO DE FASE GENERALIZADO
Defense Commitee
Profª. Drª. Françoise Toledo Reis – (president) – UFSC/FSC
Drª. Luana Lacy Mattos – (external member) – CEITEC/RS
Profª. Drª. Juliana Eccher – (local member) – UFSC/FSC
Prof. Dr. Guilherme Mariz de Oliveira Barra – (local member) – UFSC/EMC
Date: August 28, 2017 – tuesday – Time: 2:30 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física
The Physics Graduate Program invites everyone to:
Defense of Doctoral Thesis
Paloma Boeck Souza
ELECTRODEPOSITION OF Bi2Se3: MORPHOLOGY, STRUCTURE AND DOPING WITH Cu
Defense Committee:
Prof. Dr. André Avelino Pasa – (president – UFSC/FSC)
Prof. Dr. Clodoaldo Irineu Levartoski de Araujo – (external member – UFV)
Prof. Dr. Dante Homero Mosca Júnior – (external member) – UFPR
Prof. Dr. Márcio Santos – (membro titular) – UFSC/FSC
Profª. Drª Cristiani Campos Plá Cid – (local member) – UFSC/FSC
Date: August 26, 2017 – friday – Times: 9:00 am – Place: Sala 114 – Sala de Reuniões do Departamento de Física
The Physics Graduate Program invites everyone to:
Defense of Doctoral Thesis
Graziâni Candiotto
DYNAMIC MODEL FOR CHARGE AND ENERGY TRANSFER IN MOLECULAR SYSTEMS AND ARTIFICIAL NANOSTRUCTURES
Defense Committee:
Prof. Dr. Luis Guilherme de Carvalho Rego – president – (UFSC/FSC)
Prof. Dr. Marlus Koehler – (external member) – UFPR
Prof. Dr. Carlos Renato Rambo – (local member) – UFSC/EEL
Prof. Dr. Ivan Helmuth Bechtold – (membro titular) – UFSC/FSC
Prof. Dr. Lucas Nicolao – (local member) – UFSC/FSC
Date: August 25, 2017 – friday – Times: 1:30pm – Place: Sala 212 – Auditório do Departamento de Física
THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:
Dirac Electrons in Two Dimensional Crystals 
Sergio E. Ulloa
Department of Physics and Astronomy and Nanoscale and Quantum Phenomena Institute
Ohio University
Abstract:
Graphene, a monoatomic layer of carbon, is perhaps the simplest and most easily available material where electrons behave as massless Dirac particles. Apart from its many promising technological applications, the study of graphene (and other layered materials) has opened a number of interesting theoretical questions: the microscopic crystalline structure requires an additional degree of freedom (the pseudo spin) that gives rise to effects such as the Klein paradox or Veselago electron lenses.
This relativistic dynamics is further emphasized by the presence of an interesting relativistic effect: the spin-orbit interaction (SOI), which is present in materials that lack inversion symmetry in the lattice structure or arises from external or interfacial fields that break spatial symmetries. Although SOI is weak in natural graphene, it can be enhanced by local hybridizations with impurities by manipulation of substrates or applied gates. Moreover, the effective exchange interactions between magnetic impurities in this and related 2D materials exhibit interesting behavior.
In this talk, I will present our studies of electronic transport and Kondo screening in graphene, as well as the role of intrinsic SOI in transition metal dichalcogenides in mediating RKKY interactions.
Date: August 21, 2017 – (monday) – Place: Sala 212 – Auditótio do Departamento de Física – Time: 10 horas
The Physics Graduate Program invites everyone to:
Defense of Doctoral Thesis
Eduardo Muller dos Santos
INCERTEZA E INFORMAÇÃO QUÂNTICA NO MODELO DE SUPERRADIÂNCIA DE DICKE
Defense Committee:
Prof. Dr. Eduardo Inacio Duzzioni – (president – UFSC/FSC)
Profª. Drª. Liliana Sanz De La Torre – (external member – UFU/IF)
Prof. Dr. Luis Guilherme de Carvalho Rego – (external member – UFSC/FSC)
Prof. Dr. Bruno Gouvêa Taketani – (membro titular – UFSC/FSC)
Prof. Dr. Kahio Tiberio Mazon – (supplementary member – UFSC/FSC)
Date: August 18, 2017 – friday – Times: 3:00 pm – Place: Sala 212 – Auditório do Departamento de Física
THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:
Thermalization in black-body radiation and application to the Lipkin-Meshkov-Glick model.
Massimo Ostilli
Pós-doutorando/UFSC
Abstract:
In a recent work, we have derived simple Lindblad-based equations for the thermalization of systems in contact with a thermal reservoir. Here, we apply these equations to the Lipkin-Meshkov-Glick model (LMG) in contact with a blackbody radiation and analyze the dipole matrix elements involved in the thermalization process. We find that the thermalization can be complete only if the density is sufficiently high, while, in the limit of low density, the system thermalizes partially, namely, within the Hilbert subspaces where the total spin has a fixed value. In this regime, and in the isotropic case, we evaluate the characteristic thermalization time analytically, and show that it diverges with the system size in correspondence of the critical points and inside the ferromagnetic region. Quite interestingly, at zero temperature the thermalization time diverges only quadratically with the system size, whereas quantum adiabatic algorithms, aimed at finding the ground state of same system, imply a cubic divergence of the required adiabatic time.
Date: August 11, 2017 – (friday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10h10min
THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:
Sólitons*
Pawel Klimas
Abstract:
As ondas solitárias (sólitons) foram descobertas em 1844 a partir da observação do comportamento da água em canais de baixa profundidade. As propriedades destas ondas em processo de colisão são bastante distintas das propriedades que caracterizam ondas usuais. 
Foi observado que as ondas solitárias preservam a sua forma quando colidem umas com as outras. Este tipo de comportamento é possível graças a um número infinito de quantidades conservadas associadas com este sistema dinâmico. Modelos com estas propriedades são chamadas integráveis. Os sólitons existem também em vários outros modelos físicos, como por exemplo o modelo de sine-Gordon, cadeias de DNA ou modelos efetivos para interações fortes. Experimentalmente foram observados em fibras ópticas, condensado de Bose-Einstein, cristais líquidos, materiais magnéticos e vários outros sistemas físicos.
Date: August 9, 2017 – (wednesday) – Place: Auditório do Departamento de Química – Time: 18h30min
