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Atomic structure and electronic properties of Ni3Al(111) and (011) surfaces (CROSBI ID 133020)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Jurczyszyn, Leszek ; Krupski, Aleksander ; Degen, Stefan ; Pieczyrak, Barbara ; Kralj, Marko ; Becker, Conrad ; Wandelt Klaus Atomic structure and electronic properties of Ni3Al(111) and (011) surfaces // Physical review. B, Condensed matter and materials physics, 76 (2007), 4; 045101-01-045101-10. doi: 10.1103/PhysRevB.76.045101

Podaci o odgovornosti

Jurczyszyn, Leszek ; Krupski, Aleksander ; Degen, Stefan ; Pieczyrak, Barbara ; Kralj, Marko ; Becker, Conrad ; Wandelt Klaus

engleski

Atomic structure and electronic properties of Ni3Al(111) and (011) surfaces

We present results of theoretical studies of the structural and electronic properties of (111) and (011) surfaces of paramagnetic Ni3Al alloy. Atomic and electronic structures of these surfaces have been obtained from the density-functional calculations performed with the use of plane wave basis set. Our ab initio calculations show that for all considered surfaces, the topmost Al atoms are located above Ni atoms, and the structural parameters of relaxed surface systems well correspond to experimental data provided by arlier low-energy electron diffraction measurements. The details of the calculated electronic structure of Ni3Al(111) in the vicinity of the Fermi level were compared with the results of scanning tunneling spectroscopy (STS) measurements which we have performed for this system, and a good agreement has been found between the calculated local-density of-states distributions and the shape of obtained STS spectra.

Scanning tunneling microsopy; Density functional theory; Nickel; Aluminium; Structure

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Podaci o izdanju

76 (4)

2007.

045101-01-045101-10

objavljeno

1098-0121

10.1103/PhysRevB.76.045101

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Fizika

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