V
Vágner E. Carvalho
Researcher at Universidade Federal de Minas Gerais
Publications - 13
Citations - 306
Vágner E. Carvalho is an academic researcher from Universidade Federal de Minas Gerais. The author has contributed to research in topics: Topological insulator & X-ray photoelectron spectroscopy. The author has an hindex of 6, co-authored 13 publications receiving 231 citations.
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Journal ArticleDOI
The generalized simulated annealing algorithm in the low energy electron diffraction search problem.
Eduardo dos R Correia,V. B. Nascimento,Caio M. C. de Castilho,Antônio Sérgio Cavalcante Esperidião,Edmar A. Soares,Vágner E. Carvalho +5 more
TL;DR: In this article, the authors present results concerning the application of the generalized simulated annealing (GSA) algorithm to the LEED search problem and investigate the influence of the visiting distribution function (defined by the so-called q(V) parameter) in the effectiveness of the method.
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Bulk band structure of Bi 2 Te 3
Matteo Michiardi,Irene Aguilera,Marco Bianchi,Vágner E. Carvalho,Luiz Orlando Ladeira,Nayara Gomes Teixeira,Edmar A. Soares,Chiristoph Friedrich,Stefan Blügel,Philip Hofmann +9 more
TL;DR: In this paper, the bulk band structure of a family of topological insulators was determined by angle-resolved photoemission spectroscopy and compared to first-principles calculations.
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Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols
TL;DR: Green foams synthesized using a renewable polyol from the simple physical mixture of castor oil and crude glycerol presented properties that indicate a great potential to be used as thermal insulation: density, thermal conductivity, compressive strength, and Young’s modulus.
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Surface structure of Bi 2 Se 3 (111) determined by low-energy electron diffraction and surface x-ray diffraction
Diogo Duarte dos Reis,Lucas Barreto,Marco Bianchi,Guilherme A. S. Ribeiro,Edmar A. Soares,Wendell S. Silva,Vágner E. Carvalho,Jonathan Rawle,Moritz Hoesch,Chris Nicklin,Willians Principe Fernandes,Jianli Mi,Bo B. Iversen,Philip Hofmann +13 more
TL;DR: In this paper, the surface structure of the prototypical topological insulator Bi2Se3 was determined by low-energy electron diffraction and surface x-ray diffraction at room temperature.
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Advances on surface structural determination by LEED.
TL;DR: In this review, recent developments related to the theory that gives support to LEED structural determination are discussed under a critical analysis of the main theoretical approximation-the muffin-tin calculation.