Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Pastor, G. M."'
Autor:
Müller, T. S., Pastor, G. M.
The ground-state properties of the Hubbard model with attractive local pairing interactions are investigated in the framework of lattice density-functional theory. A remarkable correlation is revealed between the interaction-energy functional $W[\bol
Externí odkaz:
http://arxiv.org/abs/2110.07422
Autor:
Santos, G. Dos, Aparicio, R., Linares, D., Miranda, E. N., Tranchida, J., Pastor, G. M., Bringa, E. M.
Publikováno v:
Phys. Rev. B 102, 184426 (2020)
The magnetic behavior of bcc iron nanoclusters, with diameters between 2 and 8 nm, is investigated by means of spin dynamics (SD) simulations coupled to molecular dynamics (MD-SD), using a distance-dependent exchange interaction. Finite-size effects
Externí odkaz:
http://arxiv.org/abs/2007.02230
Autor:
Töws, W., Pastor, G. M.
Publikováno v:
Phys. Rev. B 100, 024402 (2019)
The ultrafast demagnetization (UFD) dynamics of itinerant ferromagnets is theoretically investigated as a function of the characteristics of the initial laser excitation. A many-body pd-band Hamiltonian is considered which takes into account hybridiz
Externí odkaz:
http://arxiv.org/abs/1901.09110
Akademický článek
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Autor:
Töws, W., Pastor, G. M.
Publikováno v:
Phys. Rev. Lett. 115, 217204 (2015)
Exact calculated time evolutions in the framework of a many-electron model of itinerant magnetism provide new insights into the laser-induced ultrafast demagnetization observed in ferromagnetic (FM) transition metal thin films. The interplay between
Externí odkaz:
http://arxiv.org/abs/1508.00983
Akademický článek
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Autor:
Mokkath, Junais Habeeb, Pastor, G. M.
The structural, electronic and magnetic properties of small ${\rm Fe}_m {\rm Rh}_n$ clusters having $N = m+n \leq 8$ atoms are studied in the framework of a generalized-gradient approximation to density-functional theory. For $N = m+n \leq 6$ a thoro
Externí odkaz:
http://arxiv.org/abs/1201.5971
Autor:
Mokkath, Junais Habeeb, Pastor, G. M.
The structural, electronic and magnetic properties of small ${\rm Fe}_m {\rm Rh}_n$ clusters having $N = m+n \leq 8$ atoms are studied in the framework of a generalized-gradient approximation to density-functional theory. The correlation between stru
Externí odkaz:
http://arxiv.org/abs/1110.2669
Autor:
Pastor, G. M., Jensen, P. J.
The magnetic relaxation processes in disordered two-dimensional ensembles of dipole-coupled magnetic nanoparticles are theoretically investigated by performing numerical simulations. The energy landscape of the system is explored by determining saddl
Externí odkaz:
http://arxiv.org/abs/0809.3640
Autor:
Muñoz-Navia, M., Dorantes-Dávila, J., Zitoun, D., Amiens, C., Jaouen, N., Rogalev, A., Respaud, M., Pastor, G. M.
The magnetic moments and magnetic anisotropy energy (MAE) of CoRh alloy nanoparticles are determined experimentally and theoretically. Non-trivial correlations between chemical order, magnetic order and MAE are revealed. A remarkable non-monotonous d
Externí odkaz:
http://arxiv.org/abs/0809.3638