Theoretical investigation of migration of group V adatoms on GaAs(001) surface

Autor:	Tsuyoshi Aisaka, Kaori Seino, Akira Ishii
Rok vydání:	2002
Předmět:	Surface (mathematics) Surface diffusion Condensed matter physics Chemistry Condensed Matter Physics Inorganic Chemistry Group (periodic table) Computational chemistry Materials Chemistry Density functional theory Diffusion (business) Local-density approximation Anisotropy Molecular beam epitaxy
Zdroj:	Journal of Crystal Growth. :121-124
ISSN:	0022-0248
DOI:	10.1016/s0022-0248(01)01870-x
Popis:	The microscopic migration of group V adatoms on a Ga-terminated GaAs(001) surface is investigated by performing first-principle calculations using density functional theory and a slab model of the surface. It is found that the hopping barrier energies of the As and P adatoms on Ga-terminated GaAs(001) surface are anisotropic and that the hopping barrier energies of those are lower than that of the Ga adatom. Comparing the hopping barrier energies of the As and P adatoms, the migration of the As adatom is easier than that of the P adatom.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c0856dc476d4597b8f8215ffdcc58ea6 https://doi.org/10.1016/s0022-0248(01)01870-x Zobrazit plný text záznamu Full Text from ScienceDirect