Atomic structure and spin magnetism of self-assembled Co nanowires on Pt(332)
Апстракт
Atomic structure and magnetic properties of monatomic cobalt wires self-assembled on a stepped Pt surface are studied using density-functional theory. Nucleation sites and the early stages of wire growth are obtained by calculating the binding energies and diffusion barriers of Co atoms on Pt(332), and the adsorption geometries of Co dimers and trimers on the same surface. We show that experimentally observed monoatomic Co wires formed at the step edges are kinetically favored over another thermodynamically equally stable structure found in our calculations. The spin magnetic moment of monatomic wires supported by Pt(332) is 3.74 mu(B) per Co atom, more than 50% larger than that of free-standing wires. This enhancement is explained in terms of the spin-dependent hybridization between Pt-5d and Co-3d states.
Извор:
Physical Review B: Condensed Matter and Materials Physics, 2006, 74, 13
DOI: 10.1103/PhysRevB.74.134412
ISSN: 1098-0121
WoS: 000241723200063
Scopus: 2-s2.0-33750177226
Институција/група
VinčaTY - JOUR AU - Šljivančanin, Željko AU - Popović, Zoran S. AU - Vukajlović, Filip R. AU - Baldereschi, Alfonso PY - 2006 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3114 AB - Atomic structure and magnetic properties of monatomic cobalt wires self-assembled on a stepped Pt surface are studied using density-functional theory. Nucleation sites and the early stages of wire growth are obtained by calculating the binding energies and diffusion barriers of Co atoms on Pt(332), and the adsorption geometries of Co dimers and trimers on the same surface. We show that experimentally observed monoatomic Co wires formed at the step edges are kinetically favored over another thermodynamically equally stable structure found in our calculations. The spin magnetic moment of monatomic wires supported by Pt(332) is 3.74 mu(B) per Co atom, more than 50% larger than that of free-standing wires. This enhancement is explained in terms of the spin-dependent hybridization between Pt-5d and Co-3d states. T2 - Physical Review B: Condensed Matter and Materials Physics T1 - Atomic structure and spin magnetism of self-assembled Co nanowires on Pt(332) VL - 74 IS - 13 DO - 10.1103/PhysRevB.74.134412 ER -
@article{ author = "Šljivančanin, Željko and Popović, Zoran S. and Vukajlović, Filip R. and Baldereschi, Alfonso", year = "2006", abstract = "Atomic structure and magnetic properties of monatomic cobalt wires self-assembled on a stepped Pt surface are studied using density-functional theory. Nucleation sites and the early stages of wire growth are obtained by calculating the binding energies and diffusion barriers of Co atoms on Pt(332), and the adsorption geometries of Co dimers and trimers on the same surface. We show that experimentally observed monoatomic Co wires formed at the step edges are kinetically favored over another thermodynamically equally stable structure found in our calculations. The spin magnetic moment of monatomic wires supported by Pt(332) is 3.74 mu(B) per Co atom, more than 50% larger than that of free-standing wires. This enhancement is explained in terms of the spin-dependent hybridization between Pt-5d and Co-3d states.", journal = "Physical Review B: Condensed Matter and Materials Physics", title = "Atomic structure and spin magnetism of self-assembled Co nanowires on Pt(332)", volume = "74", number = "13", doi = "10.1103/PhysRevB.74.134412" }
Šljivančanin, Ž., Popović, Z. S., Vukajlović, F. R.,& Baldereschi, A.. (2006). Atomic structure and spin magnetism of self-assembled Co nanowires on Pt(332). in Physical Review B: Condensed Matter and Materials Physics, 74(13). https://doi.org/10.1103/PhysRevB.74.134412
Šljivančanin Ž, Popović ZS, Vukajlović FR, Baldereschi A. Atomic structure and spin magnetism of self-assembled Co nanowires on Pt(332). in Physical Review B: Condensed Matter and Materials Physics. 2006;74(13). doi:10.1103/PhysRevB.74.134412 .
Šljivančanin, Željko, Popović, Zoran S., Vukajlović, Filip R., Baldereschi, Alfonso, "Atomic structure and spin magnetism of self-assembled Co nanowires on Pt(332)" in Physical Review B: Condensed Matter and Materials Physics, 74, no. 13 (2006), https://doi.org/10.1103/PhysRevB.74.134412 . .