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author = "Fernandes, R. M."

Found 27 documents, displaying page 1 of 3

Gap nodes induced by coexistence with antiferromagnetism in iron-based superconductors

Description : We investigate the pairing in iron pnictides in the coexistence phase, which displays both superconducting and antiferromagnetic orders. By solving the pairing problem on the Fermi surface reconstructed by long-range magnetic order, we find that the pairing interaction necessarily becomes angle-de...
Repository : arXiv
Language(s) : Undetermined

Enhancement of $T_{c}$ by disorder in underdoped iron pnictides

Description : We analyze how disorder affects the transition temperature $T_{c}$ of the $s^{+-}$superconducting state in the iron pnictides. The conventional wisdom is that $T_{c}$ should rapidly decrease with increasing inter-band non-magnetic impurity scattering, but we show that this behavior holds only in t...
Repository : arXiv
Language(s) : Undetermined

Fluorescence in situ hybridization method using a peptide nucleic acid probe for identification of Salmonella spp. in a broad spectrum of samples

Description : A fluorescence in situ hybridization (FISH) method for the rapid detection of Salmonella spp. using a novel peptide nucleic acid (PNA) probe was developed. Specificity and sensitivity probe matching theoretical estimates were both 100%. The PNA FISH method was optimized, and laboratory testing on re...
Repository : RepositóriUM - University of Minho Institutional Repository
Language(s) : English

Fluorescence In Situ Hybridization Method Using a Peptide Nucleic Acid Probe for Identification of Salmonella spp. in a Broad Spectrum of Samples ▿

Description : A fluorescence in situ hybridization (FISH) method for the rapid detection of Salmonella spp. using a novel peptide nucleic acid (PNA) probe was developed. The probe theoretical specificity and sensitivity were both 100%. The PNA-FISH method was optimized, and laboratory testing on representative st...
Repository : Europe PubMed Central
Language(s) : English

Preemptive nematic order, pseudogap, and orbital order in the iron pnictides

Description : Starting from a microscopic itinerant model, we derive and analyze the effective low-energy model for collective magnetic excitations in the iron pnictides. We show that the stripe magnetic order is generally preempted by an Ising-nematic order which breaks $C_{4}$ lattice symmetry but preserves O...
Repository : arXiv
Language(s) : Undetermined

Two-band superconductivity in doped SrTiO$_{3}$ films and interfaces

Description : We investigate the possibility of multi-band superconductivity in SrTiO$_{3}$ films and interfaces using a two-dimensional two-band model. In the undoped compound, one of the bands is occupied whereas the other is empty. As the chemical potential shifts due to doping by negative charge carriers or...
Repository : arXiv
Language(s) : Undetermined

Oral Candida carriage of patients attending a dental clinic in Braga, Portugal Colonización oral por Candida en pacientes que asisten a una clinica dental in Braga, Portugal

Description : The ability of the Candida species to colonize surfaces can be considered as a risk factor for oral infection. Aims The aim of this work was to establish oral Candida carriage in patients attending a dental clinic in Braga, Portugal. Methods A total of 97 patients were analysed. Swab samples were c...
Repository : RepositóriUM - University of Minho Institutional Repository
Language(s) : English

Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna

Description : Endosulfan sulphate is the transformation product of endosulfan and it is the most frequent form of surface water contamination with endosulfan. The aim of this study was to evaluate the possible effects promoted by endosulfan sulphate in changes on the life cycle, embryo development and sex differe...
Repository : Estudo Geral
Language(s) : English

Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides

Description : The in-plane anisotropy of the electrical resistivity across the coupled orthorhombic and magnetic transitions of the iron pnictides has been extensively studied in the parent and electron-doped compounds. All these studies universally show that the resistivity $\rho_{a}$ across the long orthorhom...
Repository : arXiv
Language(s) : Undetermined

Found 27 documents, displaying page 1 of 3