Small atoms fall into bulk from non-close-packed metal surfaces?
Small atoms fall into bulk from non-close-packed metal surfaces?
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小原子从非密堆积金属表面落入块状?
DOI:
10.1016/j.commatsci.2022.111959
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发表时间:
2023
影响因子:
3.3
通讯作者:
Yuhara Junji
中科院分区:
文献类型:
--
作者:
Ono Shota;Satomi Honoka;Yuhara Junji
Surface rippling has been observed when atoms of X and A are mixed on A substrate surface. The rippling amplitude has been estimated using hard sphere models. We present a gedanken experiment predicting a penetration of small atoms into bulk through the (100) surface. To understand how electronic effects alter this picture, we investigate the surface rippling of X/A (100) from first-principles, assuming X= H to Bi except for noble gases and A= Cu, Ag, and Au. We show that small atoms (such as H, C, N, O and F) attract electrons from the substrate due to the large electronegativity, which prevent them from passing through voids in the (100) surface. Application of machine learning in predicting rippling amplitude also suggests an importance of the electronegativity. The behaviors of small atoms are further explored by studying (i) lateral displacements of the first layer in the A substrate,(ii) a formation of the X dimer above, below, and across the first layer, and (iii) surface adsorption of X atom on the top, bridge, and hollow sites in Cu (100) surface. The present work provides an example to understand when atoms are not hard spheres.
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DOI:
10.3390/ma13194444
发表时间:
2020-10-07
期刊:
Materials (Basel, Switzerland)
影响因子:
--
作者:
Nur M;Yamaguchi N;Ishii F
通讯作者:
Ishii F
DOI:
10.1103/physrevb.72.113408
发表时间:
2005
期刊:
影响因子:
--
作者:
M. J. Harrison;D. P. Woodruff;James C. Robinson
通讯作者:
James C. Robinson
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
中村賀美;竹内孝江
通讯作者:
竹内孝江
DOI:
--
发表时间:
1992
期刊:
Physical Review B (Condensed Matter)
影响因子:
--
作者:
Overbury;Ku
通讯作者:
Ku
影响因子:
3.7
作者:
Havu, Paula;Blum, Volker;Scheffler, Matthias
通讯作者:
Scheffler, Matthias