Journal
NANO LETTERS
Volume 10, Issue 10, Pages 4211-4216Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl102588p
Keywords
Nanoalloys; size-dependent structural transitions; chirality; global optimization; density functional
Categories
Funding
- Italian MIUR [2007LN873M_003]
- CINECA
- COST Action [MP0903]
Ask authors/readers for more resources
A class of nanomaterials possessing the highest degree of chiral symmetry, the chiral icosahedral symmetry, is found by a combination of global optimization searches and first-principle calculations These nanomaterials are core shell nanoalloys with a Cu, Ni, or Co core and a chiral Ag or Au shell of monatomic thickness The chiral shell is obtained by a transformation of an anti-Mackay icosahedral shell by a concerted rotation of triangular atomic islands which breaks all mirror symmetries This transformation becomes energetically favorable as the cluster size increases Other chiral nanoalloys, belonging to a different structural family of C-5 group symmetry, are found in the size range between 100 and 200 atoms High-symmetry chiral nanoalloys associate strong energetic stability with potential for applications in optics, catalysis, and magnetism
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available