Oscillatory surface relaxations in Ni, Al, and their ordered alloys.
作者： S. P. Chen , A. F. Voter , D. J. Srolovitz
DOI: 10.1103/PHYSREVLETT.57.1308
关键词: Condensed matter physics 、 Crystal 、 Nickel 、 Materials science 、 Crystal structure 、 Relaxation (NMR) 、 Aluminium 、 Steric effects 、 Oscillation 、 Nial
摘要: Results from simulations of Ni, Al, Ni/sub 3/Al, and NiAl show long-range, oscillatory surface relaxations that decay exponentially into the bulk. Pure fcc Ni Al have oscillation periods are close to nearest-neighbor distance, independent crystal face. This is shown be due smoothing steric effects. In 3/Al NiAl, planes rippled, with Ni-Ni Al-Al interlayer spacings oscillating 180/sup 0/ out phase. Very good agreement between our results experimentally measured atomic obtained.
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