In the present work, a new way to obtain bimetallic nanoclusters of different structures and chemical compositions is proposed, which is based on computer simulations. Collision processes between two metal clusters of different natures are simulated through molecular-dynamics simulations using many-body potentials. Diverse diffusion mechanisms and structures can be observed, depending on the metals combined and the initial kinetic energies. The nanostructures we have found are core-shell , alloyed , and three-shell onionlike (.
REFERENCES
1.
M.
Ratner
and D.
Ratner
, Nanotechnology, A Gentle Introduction to the Next Big Idea
(Bernard Goodwin
, New Jersey, 2003
), Vol. 1
, Chap. 1, p. 3
.2.
D. J.
Wales
, in Energy Landscapes, with Applications to Clusters, Biomolecules and Glasses
, edited by R.
Saykally
(Cambridge University Press
, Cambridge, 2003
), Vol. 1
, Chap. 1, p. 9
.3.
F. J.
Palacios
and M. P.
Iñiguez
, Nucl. Instrum. Methods Phys. Res. B
196
, 253
(2002
).4.
E.
Blastein-Barojas
and M. R.
Zachariah
, Phys. Rev. B
45
, 4403
(1992
).5.
G.
Alameddin
, J.
Hunter
, D.
Cameron
, and M. M.
Kappes
, Chem. Phys. Lett.
192
, 122
(1992
).6.
D. B.
Cameron
, Ph.D. thesis, Northwestern University
1994
.7.
S. M.
Foiles
, M. I.
Baskes
, and M. S.
Daw
, Phys. Rev. B
33
, 7983
(1986
).8.
M.
Alonso
and E. J.
Finn
, Fundamental University Physics
(Addison-Wesley
, Massachusetts, 1967
), Vol. 1
.9.
T. T.
Tsong
, Y. S.
Ng
, and S. B.
McLane
, J. Chem. Phys.
73
, 1464
(1980
).10.
11.
A.
Henglein
, J. Phys. Chem. B
104
, 2201
(2000
).12.
D.
Garcia-Gutierrez
, C.
Gutierrez-Wing
, L.
Giovanetti
, J. M.
Mamallo-Lopez
, F.
Requejo
, and M.
Jose-Yacaman
, J. Phys. Chem. B
109
, 3821
(2005
).13.
D.
Garcia-Gutierrez
, C.
Gutierrez-Wing
, M.
Miki-Yoshida
, and M.
Jose-Yacaman
, Appl. Phys. A: Mater. Sci. Process.
79
, 481
(2004
).14.
R.
Hultgren
, P. D.
Desai
, D. T.
Hawkins
, M.
Gleiser
, and K. K.
Kelley
, Selected Values of the Thermodynamics Properties of Binary Alloys
(American Society for Metals
, Metals Park, OH, 1973
), Vol. 1
.15.
F.
Baletto
, C.
Mottet
, and R.
Ferrando
, Phys. Rev. Lett.
90
, 135504
(2003
).16.
F.
Baletto
, C.
Mottet
, and R.
Ferrando
, Phys. Rev. B
66
, 155420
(2002
).17.
E.
Cottancin
, J.
Lermé
, M.
Gaudry
, J. L.
Vialle
, M.
Broyer
, B.
Prével
, M.
Treilleux
, and P.
Méilion
, Phys. Rev. B
62
, 5179
(2000
).18.
L.
Vitos
, A. V.
Ruban
, H. L.
Skriver
, and J.
Kollár
, Surf. Sci.
411
, 186
(1998
).19.
C. G.
Sanchez
, E. P. M.
Leiva
, and J.
Kohanoff
, Langmuir
17
, 2219
(2001
).20.
W. R.
Tyson
and W. A.
Miller
, Surf. Sci.
62
, 267
(1977
).© 2005 American Institute of Physics.
2005
American Institute of Physics
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