info:eu-repo/semantics/article
Surface Reconstruction and Decahedral Structure of Bimetallic Nanoparticles
Fecha
2004-05-13Registro en:
Rodríguez López J. L.; Montejano Carrizales, J. M.; Pal, U.; Sánchez Ramírez, J. F.; Troiani, Horacio Esteban; et al.; Surface Reconstruction and Decahedral Structure of Bimetallic Nanoparticles; American Physical Society; Physical Review Letters; 92; 19; 13-5-2004; 1961021-1961024
0031-9007
CONICET Digital
CONICET
Autor
Rodríguez López J. L.
Montejano Carrizales, J. M.
Pal, U.
Sánchez Ramírez, J. F.
Troiani, Horacio Esteban
García, D.
Miki Yoshida, M.
José Yacamán, Miguel
Resumen
We report on energetic surface reconstruction phenomena observed on bimetallic nanoparticle systems of AuPd and AuCu, similar to a resolidification effect observed during the cooling process in lead clusters. These binary alloy nanoparticles show the fivefold edges truncated, resulting in { 100 } facets on decahedral structures, an effect largely envisioned and reported theoretically, with no experimental evidence so far. We demonstrate experimentally as well as by computational simulations that this new eutectic structure is favored in such nanoalloy systems.