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Browsing Artigos by Title

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  • Belo, L. R. A.; Oliveira Neto, N. M.; Moura Melo, W. A.; Pereira, A. R.; Ercolessi, Elisa (Physics Letters A, 2007-06-11)
    Heisenberg-like spins lying on the pseudosphere (a 2-dimensional infinite space with constant negative curvature) cannot give rise to stable soliton solutions. Only fractional solutions can be stabilized on this surface ...
  • Freitas, Walter A.; Moura-Melo, Winder A.; Pereira, A. R. (Physics Letters A, 2005-03-14)
    This work is devoted to the study of how spin texture excitations are affected by the presence of a static non-magnetic impurity whenever they lie on a conical support. We realize a number of novelties as compared to the ...
  • Jameel, D.A.; Felix, J.F.; Aziz, M.; Al Saqri, N.; Taylor, D.; Azevedo, W.M. de; Silva Jr., E.F. da; Albalawi, H.; Alghamdi, H.; Al Mashary, F.; Henini, M. (Applied Surface Science, 2015-12-01)
    In this paper, we present an extensive study of the electrical properties of organic-inorganic hybrid heterojunctions. Polyaniline (PANI) thin films were deposited by a very simple technique on (1 0 0) and (3 1 1)B n-type ...
  • Rizzi, L. G.; Auer, S.; Head, D. A. (Soft Matter, 2016-04-11)
    Disordered fibre networks are ubiquitous in nature and have a wide range of industrial applications as novel biomaterials. Predicting their viscoelastic response is straightforward for affine deformations that are uniform ...
  • Rodrigues, Leonarde N.; Silva, Saimon Filipe Covre da; Garcia Jr., Ailton J.; Morelhão, Sergio L.; Couto Jr, Odilon D. D.; Iikawa, Fernando (Nanoscale, 2019)
    Overcoming the critical thickness limit in pseudomorphic growth of lattice mismatched heterostructures is a fundamental challenge in heteroepitaxy. On-demand transfer of light-emitting structures to arbitrary host substrates ...
  • Ferreira, Sukarno Olavo; Casarin, Letícia Sopeña; Casarin, Fabrício de Oliveira; Brandelli, Adriano; Novello, Júnia; Tondo, Eduardo Cesar (LWT - Food Science and Technology, 2016-06)
    Bacterial attachment to stainless steels AISI (American Iron and Steel Institute) 304 and 316, the preferred material choices for food equipment, is a very important food safety consideration. The purpose of the present ...
  • Rizzi, L. G.; Levin, Y. (The Journal of Chemical Physics, 2016-03-21)
    It is well-known that the swelling behavior of ionic nanogels depends on their cross-link density; however, it is unclear how different topologies should affect the response of the polyelectrolyte network. Here we perform ...
  • Araujo, Clodoaldo Irineu Levartoski de; Khan, Rajwali; Zulfiqar; Khan, Tahirzeb; Rahman, Muneeb Ur; Rehman, Zia Ur; Khan, Aurangzeb; Ullah, Burhan; Fashu, Simbarashe (Journal of Materials Science: Materials in Electronics, 2018-06)
    We analysed the variation and effect of oxygen vacancies on the structural, dielectric and magnetic properties in case of Mn (4%) and Co (1, 2 and 4%) co-doped ZnO nanoparticles (NPs), synthesized by chemical precipitation ...
  • Almeida, Renan A. L.; Ferreira, Sukarno O.; Ferraz, Isnard; Oliveira, Tiago J. (Scientific Reports, 2017-06-19)
    The Kardar-Parisi-Zhang (KPZ) class is a paradigmatic example of universality in nonequilibrium phenomena, but clear experimental evidences of asymptotic 2D-KPZ statistics are still very rare, and far less understanding ...
  • Luz, Leonis L. da; Milani, Raquel; Felix, Jorlandio F.; Ribeiro, Igor R. B.; Talhavini, Márcio; Chojnacki, Jaroslaw; Rodrigues, Marcelo O.; D. Neto, Brenno A.; A. Júnior, Severino (ACS Applied Materials & Interfaces, 2015-11-02)
    Photoluminescent lanthanide−organic frameworks (Ln-MOFs) were printed onto plastic and paper foils with a conventional inkjet printer. Ln-MOF inks were used to reproduce color images that can only be observed under UV light ...
  • Ribeiro, I R B; Felix, J F; Figueiredo, L C; Morais, P C; Ferreira, S O; Melo, W A Moura; Pereira, A R; Quindeau, A; Araujo, C I L de (Journal of Physics: Condensed Matter, 2016-08-23)
    In this work, we report experimental and theoretical investigations performed in anti-spin ice structures, composed by square lattice of elongated antidots, patterned in nickel thin film. The magnetic vortex crystal state ...
  • Santos, O. A.; Silva, E. F.; Gamino, M.; Mendes, J. B. S.; Rezende, S. M.; Azevedo, A. (AIP Advances, 2019)
    The spin Hall angle (SHA) represents the efficiency of the conversion between spin current into charge current and vice-versa. In this paper, we report the experimental detection of large enhancement of the effective SHA ...
  • Gomes, Joaquim P.; Felix, Jorlandio F.; Mondal, Sanjib; Ghosh, Anupam; Gobato, Y. Galvão; Galeti, H. V. Avanço; Choudhuri, B.; Dwivedi, S. M. M. Dhar; Henini, M.; Mondal, Aniruddha; Piton, M. Rizzo (Journal of Materials Science: Materials in Electronics, 2018-11)
    We have investigated the electrical and optical properties of erbium (Er3+) doped TiO2 thin films (Er:TiO2 TFs) grown by sol–gel technique on glass and silicon substrates. The samples were characterized by field emission ...
  • Araujo, Clodoaldo Irineu Levartoski de; Al-Saqri, Noor Alhuda M.; Felix, Jorlandio Francisco; Aziz, Mohsin; Albalawi, Hind Mohammed A.; Jameel, Dler; Al Mashary, Faisal; Alghamdi, Haifaa; Taylor, David A.; Henini, Mohamed (Current Applied Physics, 2015-10)
    This work reports the effect of gamma (γ-) irradiation on dilute GaAsN with nitrogen concentrations ranging from 0.2 to 1.2% with post-irradiation stability using Current–Voltage (I–V) and Deep Level Transient Spectroscopy ...
  • Del Cima, O. M. (Physics Letters B, 2013-03-13)
    The massive even-parity non-Abelian gauge model in three space–time dimensions proposed by Jackiw and Pi is studied at the tree-level. The propagators are computed and the spectrum consistency is analyzed, besides, the ...
  • Carrasco, I. S. S.; Oliveira, T. J. (Physical Review E, 2018-07)
    Recent experimental works on one-dimensional (1D) circular Kardar-Parisi-Zhang (KPZ) systems whose radii decrease in time have reported controversial conclusions about the statistics of their interfaces. Motivated by this, ...
  • Mata, Angélica S.; Boguñá, Marian; Castellano, Claudio; Pastor-Satorras, Romualdo (Physical Review E, 2015-05-12)
    In a recent work, a new numerical method (the lifespan method) has been introduced to study the critical properties of epidemic processes on complex networks [M. Boguñá, C. Castellano, and R. Pastor-Satorras, Phys. Rev. ...
  • Ferreira, Silvio C.; Luis, Edwin E. Mozo; Assis, Thiago A. de; Andrade, Roberto F. S. (Physical Review, 2019-02)
    We report local roughness exponents, αloc, for three interface growth models in one dimension which are believed to belong to the nonlinear molecular-beam-epitaxy (nMBE) universality class represented by the Villain-Lais-Das ...
  • Oporto, Zui; Constantinidis, Clisthenis P.; Piguet, Olivier (Classical and Quantum Gravity, 2015)
    We present a complete quantization of Lorentzian D = 1 + 2 gravity with cosmological constant, coupled to a set of topological matter fields. The approach of loop quantum gravity is used thanks to a partial gauge fixing ...
  • Piguet, O. (Astronomische Nachrichten, 2014-08-05)
    In this talk, I give a short general introduction to Loop Quantum Gravity (LQG), beginning with some motivations for quantizing General Relativity, listing various attempts and then focusing on the case of LQG.

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