A two-dimensional terrace structure on an ion-bombarded β-Sn(001) surface

Autor:	B J Hopkins, M E Woods
Rok vydání:	1985
Předmět:	Diffraction Surface (mathematics) geography Materials science geography.geographical_feature_category General Engineering Step height General Physics and Astronomy Atmospheric temperature range Condensed Matter Physics Ion bombardment Molecular physics Square (algebra) Ion Terrace (geology)
Zdroj:	Journal of Physics C: Solid State Physics. 18:217-224
ISSN:	0022-3719
DOI:	10.1088/0022-3719/18/1/025
Popis:	Sn (001) surfaces, cleaned by ion bombardment are studied by LEED and AES have been found to form terraces with steps both up and down along the (10) and (01) directions of the square net. The terrace structure is stable over the temperature range 115K to 473K. Measurements from LEED patterns indicate a step height of c/2 and terrace separation of a/2 in terms of bulk unit cell dimensions. The experimental diffraction patterns were compared with simulated patterns obtained from three model terrace structures using kinematic theory. The closest approximation to the real patterns is given by the model with three atoms per terrace.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e678d70ba71e784a5cff325b85302167 https://doi.org/10.1088/0022-3719/18/1/025 Zobrazit plný text záznamu