Au and Ag nanoparticles embedded in amorphous Al2O3 matrix are fabricated by the pulsed laser deposition (PLD) method\r\nand rapid thermal annealing (RTA) technique, which are confirmed by the experimental high-resolution transmission electron\r\nmicroscope (HRTEM) results, respectively. The strain distribution of Au and Ag nanoparticles embedded in the Al2O3 matrix is\r\ninvestigated by the finite-element (FE) calculations.The simulation results clearly indicate that both the Au and Ag nanoparticles\r\nincur compressive strain by the Al2O3 matrix. However, the compressive strain existing on the Au nanoparticle is much weaker\r\nthan that on the Ag nanoparticle. This phenomenon can be attributed to the reason that Young�s modulus of Au is larger than that\r\nof Ag.This different strain distribution of Au and Ag nanoparticles in the same host matrix may have a significant influence on the\r\ntechnological potential applications of the Au-Ag alloy nanoparticles.
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