Miguel António da Nova Araújo (Professor Auxiliar c/ Agregação/ Assistant Professor) (CV)
Department of Physics
University of Évora
Colégio Luis Verney, gab 080
7000-671 Évora, Portugal
Tel: 266 745 330 ext: 25407
email: mana@uevora.pt
Also at:
CeFEMA - Centro de Física e Engenharia de Materiais Avançados
Instituto Superior Técnico
Avenida Rovisco Pais
1049-001 Lisboa
Tel (ext./Direct): 1620 / 218 417 620
Research Interests:
Theory of Condensed Matter. Strongly Correlated Electronic Systems. Topological electronic systems. List of Publications
Here are some selected papers in:
- Topological electronic systems:
-Disorder-induced instability of a Weyl nodal loop semimetal towards a diffusive topological metal with protected multifractal surface states, João S. Silva, Miguel Gonçalves, Eduardo V. Castro, Pedro Ribeiro, Miguel A. N. Araújo, Physical Review B 111, L04116 (2025)
-Delocalization of topological surface states by diagonal disorder in nodal loop semimetals João S. Silva, Miguel A. N. Araújo, Miguel Gonçalves, Pedro Ribeiro, Eduardo V. Castro, Physical Review B 107, 045146 (2023)
-Disorder-driven multifractality transition in Weyl nodal loops, Miguel Gonçalves, Pedro Ribeiro, Eduardo V. Castro and Miguel A. N. Araújo, Physical Review Letters 124 , 136405 (2020)
-Broken-symmetry phases of interacting nested Weyl and Dirac loops, Miguel A. N. Araújo and Linhu Li, Physical Review B 98, 155114 (2018)
-Change of an insulator's topological properties by a Hubbard interaction, Miguel A. N. Araújo, Eduardo V. Castro and Pedro D. Sacramento, Physical Review B 87, 085109 (2013)
-Graphene:
Phase diagram and magnetic collective excitations of the Hubbard model for graphene sheets and layers, N.M.R. Peres, M.A.N Araújo and D. Bozi, Physical Review B 70, 195122 (2004)
Comment on "Gapless Spin-1 Neutral Collective Mode Branch for Graphite", N. M. R. Peres, M. A. N. Araújo, and A. H. Castro Neto, Physical Review Letters 92, 199701 (2004)
-Spintronics:
Transmission
of correlated electrons through sharp domain walls in magnetic
nanowires: a renormalization group approach, M.A.N.
Araújo, V. K. Dugaev, V. R. Vieira, J Berakdar and J.
Barnas, Physical
Review B 74, 224429 (2006)
Role of a spin-flip scatterer in a magnetized Lutinger liquid M.A.N. Araújo, Berakdar , V. K. Dugaev and V. R. Vieira, Physical Review B 76, 205107 (2007)
-Heavy
fermion systems:
Electron transmission in normal
metal/heavy-fermion superconductor junctions: A two-band model,
M. A. N. Araújo and P. D. Sacramento, Physical
Review B 77, 134519 (2008)
Electron transmission between normal and heavy electron metallic phases in Kondo lattice systems , M.A.N. Araújo and A. H. Castro Neto, Physical Review B 75, 115133 (2007)
-Superconductivity:
Quantum
waveguide theory of Andreev spectroscopy in multiband
superconductors: the case of iron pnicides, M.A.N.
Araújo, P.D. Sacramento and V.R. Vieira , Physical
Review B 79, 174529 (2009)
Single vortex structure in two models of iron pnictide s+- superconductivity, M. A. N. Araújo, M. Cardoso, P. D. Sacramento, New Journal of Physics 11, 113008 (2009)
-Itinerant
Magnetism:
Spin spectral weight distribution and
energy range of the parent compound La2CuO4,
M.A.N. Araújo, J. M. P. Carmelo, M. J. Sampaio and S. R. White,
Europhysics
Letters 98, 67004 (2012)
Spin wave dispersion in La2CuO4, N.M.R.Peres and M.A.N. Araújo, Physical Review B 65, 132404 (2002)
Research
Projects:
-”Emergent quantum states in novel 2D materials” EXPL/FIS-NAN/1728/2013
-"In search of novel mechanisms to increase the critical temperature of a superconductor'' PTDC/FIS/11134/2009
- “Electronic properties of novel FeAs-based superconductors" PTDC/FIS/101126/2008
-“Electronic transport and magnetic dynamics in low dimensional magnetic systems and nanostructures'' PTDC/FIS/70843/2006
-"Manipulation of spin and charge currents in magnetic nanostructures" POCI-FIS/58746/2004
- “Electronic properties of new materials”, PRAXIS XXI 2/2.1 /FIS/ 302/94