Zobrazeno 1 - 10
of 5 070
pro vyhledávání: '"Veiga, L."'
Autor:
Silva, A. G., Pontes, R. B., Boldrin, M., Pessoni, H. V. S., Veiga, L. S. I., Jesus, J. R., Fabrelli, H., Gonzaga, A. R. C., Bittar, E. M., Bufaiçal, L.
Publikováno v:
Physical Review B 110, 144415 (2024)
The electron spin polarization on half-metallic double-perovskites is usually conditioned to the ordered rock-salt arrangement of the transition-metal ions along the lattice. In this work, we investigate a polycrystalline sample of the Ca1.5La0.5MnRu
Externí odkaz:
http://arxiv.org/abs/2410.01980
In this work we design a novel $C^1$-conforming virtual element method of arbitrary order $k \geq 2$, to solve the biharmonic problem on a domain with curved boundary and internal curved interfaces in two dimensions. By introducing a suitable stabili
Externí odkaz:
http://arxiv.org/abs/2408.17381
We study the convergence analysis of a finite element method for the approximation of solutions to a seven-fields formulation of a magnetohydrodynamics model, which preserves the energy of the system, and the magnetic and cross helicities on the disc
Externí odkaz:
http://arxiv.org/abs/2407.19748
The effect of thermal surface cleaning on the Gilbert damping, $\alpha$, of yttrium iron garnet (YIG), before capping with a metallic layer, has been investigated. Our results show that $\alpha$ is strongly effected by relatively mild annealing condi
Externí odkaz:
http://arxiv.org/abs/2407.16005
We propose and analyze two convection quasi-robust and pressure robust finite element methods for a fully nonlinear time-dependent magnetohydrodynamics problem. The schemes make use of suitable upwind and CIP stabilizations to handle the fluid and ma
Externí odkaz:
http://arxiv.org/abs/2405.05434
In this paper, we design and analyze a Virtual Element discretization for the steady motion of non-Newtonian, incompressible fluids. A specific stabilization, tailored to mimic the monotonicity and boundedness properties of the continuous operator, i
Externí odkaz:
http://arxiv.org/abs/2403.03886
Autor:
Rahn, M. C., Wilson, M. N., Hicken, T. J., Pratt, F. L., Wang, C., Orlandi, F., Khalyavin, D. D., Manuel, P., Veiga, L. S. I., Bombardi, A., Francoual, S., Bereciartua, P., Sukhanov, A. S., Thompson, J. D., Thomas, S. M., Rosa, P. F. S., Lancaster, T., Ronning, F., Janoschek, M.
Eu$_5$In$_2$Sb$_6$ is a member of a family of orthorhombic nonsymmorphic rare-earth intermetallics that combines large localized magnetic moments and itinerant exchange with a low carrier density and perpendicular glide planes. This may result in spe
Externí odkaz:
http://arxiv.org/abs/2312.15054
Autor:
Bufaiçal, L., Veiga, L. S. I., Mardegan, J. R. L., Pohlmann, T., Francoual, S., Dhesi, S. S., Fontes, M. B., Bittar, E. M.
Publikováno v:
Journal of Magnetism and Magnetic Materials 587, 171276 (2023)
Here, we report on the structural, electronic, and magnetic properties of a polycrystalline sample of the LaCaCoIrO$_6$ double-perovskite investigated by means of synchrotron x-ray powder diffraction, x-ray absorption spectroscopy, and x-ray magnetic
Externí odkaz:
http://arxiv.org/abs/2310.01114
The Virtual Element Method for diffusion-convection-reaction problems is considered. In order to design a quasi-robust scheme also in the convection-dominated regime, a Continuous Interior Penalty approach is employed. Due to the presence of polynomi
Externí odkaz:
http://arxiv.org/abs/2307.04555
We introduce a pressure robust Finite Element Method for the linearized Magnetohydrodynamics equations in three space dimensions, which is provably quasi-robust also in the presence of high fluid and magnetic Reynolds numbers. The proposed scheme use
Externí odkaz:
http://arxiv.org/abs/2306.15478