Single impurity effect on the melting of nanoclusters
作者： C. Mottet , G. Rossi , F. Baletto , R. Ferrando
DOI: 10.1103/PHYSREVLETT.95.035501
关键词: Impurity 、 Stress relaxation 、 Materials science 、 Doping 、 Chemical physics 、 Transition metal 、 Melting point 、 Nanoclusters 、 Icosahedral symmetry 、 Relaxation (NMR)
摘要: We show by molecular dynamics simulations that the melting temperature of clusters can be tuned selective doping. In fact, a single Ni or Cu impurity in Ag icosahedral considerably increases even for sizes more than hundred atoms. The upward shift is correlated to strain relaxation induced small central clusters.
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R. Stephen Berry, Size is everything Nature. ,vol. 393, pp. 212- 213 ,(1998) , 10.1038/30352
Martin Schmidt, Robert Kusche, Bernd von Issendorff, Hellmut Haberland, Irregular variations in the melting point of size-selected atomic clusters Nature. ,vol. 393, pp. 238- 240 ,(1998) , 10.1038/30415
T. Castro, R. Reifenberger, E. Choi, R. P. Andres, Size-dependent melting temperature of individual nanometer-sized metallic clusters Physical Review B. ,vol. 42, pp. 8548- 8556 ,(1990) , 10.1103/PHYSREVB.42.8548
E. Aprà, F. Baletto, R. Ferrando, A. Fortunelli, Amorphization Mechanism of Icosahedral Metal Nanoclusters Physical Review Letters. ,vol. 93, pp. 065502- ,(2004) , 10.1103/PHYSREVLETT.93.065502
Andrés Aguado, Luis E González, José M López, None, Thermal properties of impurity-doped clusters: Orbital-free molecular dynamics simulations of the meltinglike transition in Li1Na54 and Cs1Na54 Journal of Physical Chemistry B. ,vol. 108, pp. 11722- 11731 ,(2004) , 10.1021/JP049274P
H.S. Lim, C.K. Ong, F. Ercolessi, Stability of face-centered cubic and icosahedral lead clusters Surface Science. ,vol. 269, pp. 1109- 1115 ,(1992) , 10.1016/0039-6028(92)91401-V
C. Mottet, G. Tréglia, B. Legrand, New magic numbers in metallic clusters: an unexpected metal dependence Surface Science. ,vol. 383, ,(1997) , 10.1016/S0039-6028(97)00226-4
Gary A. Breaux, Robert C. Benirschke, Toshiki Sugai, Brian S. Kinnear, Martin F. Jarrold, Hot and solid gallium clusters: too small to melt. Physical Review Letters. ,vol. 91, pp. 215508- 215508 ,(2003) , 10.1103/PHYSREVLETT.91.215508
S. Chacko, Kavita Joshi, D. G. Kanhere, S. A. Blundell, Why do gallium clusters have a higher melting point than the bulk Physical Review Letters. ,vol. 92, pp. 135506- ,(2004) , 10.1103/PHYSREVLETT.92.135506
C. E. Bottani, A. Li Bassi, B. K. Tanner, A. Stella, P. Tognini, P. Cheyssac, R. Kofman, Melting in metallic Sn nanoparticles studied by surface Brillouin scattering and synchrotron-x-ray diffraction Physical Review B. ,vol. 59, pp. R15601- R15604 ,(1999) , 10.1103/PHYSREVB.59.R15601