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Epitaxial Mn5Ge3 nano-islands on a Ge(001) surface
- Authors
- Kim, Howon; Jung, Goo-Eun; Lim, Jin-Hyung; Chung, Kyung Hoon; Kahng, Se-Jong; Son, Won-joon; Han, Seungwu
- Issue Date
- 16-1월-2008
- Publisher
- IOP PUBLISHING LTD
- Citation
- NANOTECHNOLOGY, v.19, no.2
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOTECHNOLOGY
- Volume
- 19
- Number
- 2
- ISSN
- 0957-4484
- Abstract
- The growth behavior and atomic structure of Mn germanide, grown on Ge(001), is studied with x-ray diffraction and scanning probe microscopy. The amorphous clusters of as-deposited Mn are crystallized into Mn5Ge3 nano-islands with a size of similar to 100 nm by solid phase epitaxy. At low coverage, the shape of the nano-islands is plateau-like, while at increased coverage it becomes mound-like. At the flat top of the plateau-like nano-islands, the hexagonal atomic structure is resolved. It is interpreted, with the help of first-principles study, as a Mn-terminated Mn5Ge3(0001) structure.
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