The magnetic phases of cobalt nanocylinders at the molecular scale have been studied by means of density functional theory together with micromagnetism. Diameters of the objects are under 1 nm. The magnetic phases resulting from first-principle calculations are far from obvious and quite different from both semiclassical results and extrapolations from what is measured for larger objects. These differences reinforce the importance of the quantum mechanical approach for small nanoscopic particles. One of the main results reported here is precisely the unexpected order in the last filled orbitals, which produce objects with alternating magnetic properties as the length of the cylinder increases. The resulting anisotropy is not obvious. The vo...
We perform a systematic study based on micromagnetic simulations of the demagnetization process for ...
We report on the structural, electronic, and magnetic phases of a previously unexplored region in th...
Various mixed Co/Rh and Co/Pt systems from the macroscopic surface and bulk alloys down to the small...
There has been a great deal of work concerning cylindrical magnetic nanoparticles in the l...
International audienceWe report on a wide variety of magnetic states in Co/Cu multilayered nanocylin...
The energy diagram of stationary magnetization states existing in polycrystalline cobalt nanoparticl...
We report on the synthesis, structure, and magnetic properties of cobalt nanoparticles with cubic sh...
We report on the magnetic and structural properties of an individual 40 nm diameter magnetic nanowir...
International audienceThe study of the new forms of magnetic states in magnetic cylinders has recent...
To calculate the magnetic ground state of nanoparticles we present a self-consistent first-principle...
9 pages, 10 figures; conference proceeding: 1st Joint European Magnetic Symposia (JEMS\'01), Grenobl...
We have investigated the effect of lattice fluctuations on the magnetic properties of nanoparticles ...
CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPESP - FUNDAÇÃO DE AMPARO À PE...
Magnetic properties of iron oxide nanoparticles with spinel structure are strictly related to a comp...
We perform a systematic study based on micromagnetic simulations of the demagnetization process for ...
We report on the structural, electronic, and magnetic phases of a previously unexplored region in th...
Various mixed Co/Rh and Co/Pt systems from the macroscopic surface and bulk alloys down to the small...
There has been a great deal of work concerning cylindrical magnetic nanoparticles in the l...
International audienceWe report on a wide variety of magnetic states in Co/Cu multilayered nanocylin...
The energy diagram of stationary magnetization states existing in polycrystalline cobalt nanoparticl...
We report on the synthesis, structure, and magnetic properties of cobalt nanoparticles with cubic sh...
We report on the magnetic and structural properties of an individual 40 nm diameter magnetic nanowir...
International audienceThe study of the new forms of magnetic states in magnetic cylinders has recent...
To calculate the magnetic ground state of nanoparticles we present a self-consistent first-principle...
9 pages, 10 figures; conference proceeding: 1st Joint European Magnetic Symposia (JEMS\'01), Grenobl...
We have investigated the effect of lattice fluctuations on the magnetic properties of nanoparticles ...
CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPESP - FUNDAÇÃO DE AMPARO À PE...
Magnetic properties of iron oxide nanoparticles with spinel structure are strictly related to a comp...
We perform a systematic study based on micromagnetic simulations of the demagnetization process for ...
We report on the structural, electronic, and magnetic phases of a previously unexplored region in th...
Various mixed Co/Rh and Co/Pt systems from the macroscopic surface and bulk alloys down to the small...