27 citations · 51 across the 7 of their papers we have counts for
5 papers · 1 filter
Magnetic structure and critical behavior of GdRhIn: resonant x-ray diffraction and renormalization group analysis
E. Granado, B. Uchoa, A. Malachias +3
The magnetic structure and fluctuations of tetragonal GdRhIn5 were studied by resonant x-ray diffraction at the Gd LII and LIII edges, followed by a renormalization group analysis…
Fluctuation induced first-order phase transitions in a dipolar Ising ferromagnet slab
Rafael M. Fernandes, Harry Westfahl
We investigate the competition between the dipolar and the exchange interaction in a ferromagnetic slab with finite thickness and finite width. From an analytical approximate expre…
Magnetic reconfiguration of MnAs/GaAs(001) observed by Magnetic Force Microscopy and Resonant Soft X-ray Scattering
L. N. Coelho, R. Magalhães-Paniago, B. R. A. Neves +7
We investigated the thermal evolution of the magnetic properties of MnAs epitaxial films grown on GaAs(001) during the coexistence of hexagonal/orthorhombic phases using polarized…
Domain wall formation and spin reorientation in finite-size magnetic systems
Rafael M. Fernandes, Harry Westfahl, Rogério Magalhães-Paniago +1
We investigate the formation of stable one-dimensional Néel walls in a ferromagnetic slab with finite thickness and finite width. Taking into account the dipolar, the exchange and…
Forward Scattering Approximation and Bosonization in Integer Quantum Hall Systems
M. Rosenau da Costa, H. Westfahl, A. O. Caldeira
In this work we present a model and a method to study integer quantum Hall (IQH) systems. Making use of the Landau levels structure we divide these two dimensional systems into a s…