Self-assembled Fe nanodots on Ge (001)
Citation:
K. Jordan, I.V. Shvets, Self-assembled Fe nanodots on Ge (001), Applied Physics Letters, 88, 19, 2006, 193111-Download Item:
Self-assembled Fe nanodots on Ge(001)_APL88(19).pdf (Published (publisher's copy) - Peer Reviewed) 314.2Kb
Abstract:
The initial nucleation of Fe onto the (2x1) reconstructed Ge(001) surface is studied. Uniformly sized two-dimensional Fe dots are shown to nucleate. They have an apparent corrugation height similar to 1.1 A and lateral dimensions similar to 12x8 A(2). Further to their uniform size, due to their registry with respect to the substrate, they are shown to nucleate on a single equivalent surface site. It is suggested that their stability is due to either a "magic" number effect or adsorbate-substrate interactions. Tunneling I(V) spectra show the dot/Ge(001) contact to exhibit marked current rectifying behavior, which is extremely well confined to the contact area.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
00/PI.1/C042
Author's Homepage:
http://people.tcd.ie/ivchvetsDescription:
PUBLISHED
Author: SHVETS, IGOR
Type of material:
Journal ArticleCollections:
Series/Report no:
Applied Physics Letters88
19
Availability:
Full text availableKeywords:
self-assembly, Fe, nanodots, Ge(001), surface, nanostructures, clusters, Si(111)-(7x7)Subject (TCD):
Nanoscience & MaterialsLicences: