Premium
Cover Picture: Phys. Status Solidi RRL 12/2010
Publication year - 2010
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201090016
Subject(s) - cover (algebra) , nanostructure , nanodot , nanotechnology , substrate (aquarium) , materials science , surface (topology) , epitaxy , engineering physics , physics , mathematics , layer (electronics) , geometry , mechanical engineering , engineering , geology , oceanography
Droplet epitaxy is a versatile growth technique for various nanostructures. In the Letter featured on the cover, Jiang Wu et al. (pp. 371–373) have investigated the potential control of nanostructure growth by using different substrate surfaces. The cover image shows that both morphology and density of droplets are strongly dependent on preparation surfaces. Ga droplets formed on GaAs(100) surface demonstrate a lager size but lower density compared with that formed on AlAs(100) surface. In the case of Al droplet, ring‐shaped nanostructures are observed on GaAs(100) surface while high‐density nanodots appear on AlAs(100) surfaces. The surface diffusion and free energy are the important factors for the design and control of nanostructure growth by droplet epitaxy.