57 citations · 199 across the 9 of their papers we have counts for
9 papers
The role of magnetic excitations in magnetoresistance and Hall effect of slightly TM-substituted BaFeAs compounds (TM = Mn, Cu, Ni)
J. P. Peña, M. M. Piva, C. B. R. Jesus +10
We report on electrical resistivity, magnetoresistance (MR) and Hall effect measurements in four non-superconducting BaFeTMAs (TM = Mn, Cu and Ni) single crystals w…
Possible unconventional superconductivity in substituted BaFeAs revealed by magnetic pair-breaking studies
P. F. S. Rosa, C. Adriano, T. M. Garitezi +8
The possible existence of a sign-changing gap symmetry in BaFeAs-derived superconductors (SC) has been an exciting topic of research in the last few years. To further i…
Metallic Surface States Probed Within the Microwave Skin Depth of the Putative Topological Insulator YBiPt Compound
G. G. Lesseux, T. M. Garitezi, P. F. S. Rosa +7
Electron Spin Resonance (ESR) experiments of diluted Nd ions in the claimed topological insulator (TI) YBiPt are reported. Powdered samples with grain size from 10…
Physical properties and magnetic structure of the intermetallic CeCuBi2 compound
C. Adriano, P. F. S. Rosa, C. B. R. Jesus +10
In this work, we combined magnetization, pressure dependent electrical resistivity, heat-capacity, 63Cu Nuclear Magnetic Resonance (NMR) and X-ray resonant magnetic scattering expe…
Quantum Oscillations in EuFe2As2 single crystals
P. F. S. Rosa, B. Zeng, C. Adriano +6
Quantum oscillation measurements can provide important information about the Fermi surface (FS) properties of strongly correlated metals. Here, we report a Shubnikov-de Haas (SdH)…
Site specific spin dynamics in BaFe2As2: tuning the ground state by orbital differentiation
P. F. S. Rosa, C. Adriano, T. M. Garitezi +4
The role of orbital differentiation on the emergence of superconductivity in the Fe-based superconductors remains an open question to the scientific community. In this investigatio…
Co-substitution effects on the Fe-valence in the BaFe2As2 superconducting compound: A study of hard x-ray absorption spectroscopy
E. M. Bittar, C. Adriano, T. M. Garitezi +6
The Fe K X-ray absorption near edge structure (XANES) of BaFe2-xCoxAs2 superconductors was investigated. No appreciable alteration in shape or energy position of this edge was obse…
Pressure and chemical substitution effects in the local atomic structure of BaFe2As2
E. Granado, L. Mendonca-Ferreira, F. Garcia +10
The effects of K and Co substitutions and quasi-hydrostatic applied pressure (P<9 GPa) in the local atomic structure of BaFe2As2, Ba(Fe{0.937}Co{0.063})2As2 and Ba{0.85}K{0.15}Fe2A…
Distinct high-T transitions in underdoped BaKFeAs
R. R. Urbano, E. L. Green, W. G. Moulton +7
In contrast to the simultaneous structural and magnetic first order phase transition previously reported, our detailed investigation on an underdoped BaKF…