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Properties of Pt-supported Co nanomagnets from relativistic density functional theory calculations
- Source :
- Physical review. B, Condensed matter and materials physics (Online) 78 (2008). doi:10.1103/PhysRevB.78.014416, info:cnr-pdr/source/autori:Conte, AM; Fabris, S; Baroni, S/titolo:Properties of Pt-supported Co nanomagnets from relativistic density functional theory calculations/doi:10.1103%2FPhysRevB.78.014416/rivista:Physical review. B, Condensed matter and materials physics (Online)/anno:2008/pagina_da:/pagina_a:/intervallo_pagine:/volume:78
- Publication Year :
- 2008
- Publisher :
- American Physical Society (APS), 2008.
-
Abstract
- The electronic, structural, and magnetic properties of Co-based low-dimensional nanostructures supported by Pt surfaces are investigated using computer simulations based on density functional theory. The effects of the local orientation of the magnetization, including the magnetic anisotropy energy, are accounted for within a noncollinear spin-density functional theory formalism where the spin-orbit interaction is described by fully relativistic ultrasoft pseudopotentials. The magnetic moments, the direction of the easy-magnetization axis, and the anisotropy energy are compared with available experimental and theoretical data, and are shown to be extremely sensitive to the local atomic environment of the Co adatoms. We argue that this sensitivity could be exploited to tailor the properties of magnetic devices by engineering the local environment and/or the operating conditions of nanomagnets.
- Subjects :
- Physics
Condensed matter physics
Magnetic moment
Anisotropy energy
Magnetic energy
Orbital-free density functional theory
Time-dependent density functional theory
Condensed Matter Physics
ABSENCE
Settore FIS/03 - Fisica della Materia
Electronic, Optical and Magnetic Materials
FERROMAGNETISM
Condensed Matter::Materials Science
Magnetization
Magnetic anisotropy
ANTIFERROMAGNETISM
NANOPARTICLES
Density functional theory
MAGNETIC-ANISOTROPY
Subjects
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 78
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....66c2bf77d67624b943d8e5e04976e516