Level Statistics and Specific Heat of Metallic Nano-Particles
CHENG Nan-Pu1, CHEN Zhi-Qian1,2, CHEN-Hong1
1Department of Physics, Southwest China Normal University, Chongqing 400715
2Institute of Material Science, Southwest China Normal University, Chongqing 400715
Level Statistics and Specific Heat of Metallic Nano-Particles
CHENG Nan-Pu1;CHEN Zhi-Qian1,2;CHEN-Hong1
1Department of Physics, Southwest China Normal University, Chongqing 400715
2Institute of Material Science, Southwest China Normal University, Chongqing 400715
Abstract： The thermodynamic properties of an ensemble of metallic nano-particles are affected by the level distribution and the level correlation between the discrete electronic energy levels. We numerically calculate the specific heat of metallic nano-particles in the canonical ensemble with an odd or even number of electrons by considering the effects of the level distribution and the level correlation. The behaviour of the specific heat at low and high temperatures, compared with the average nearest-neighbor level spacing, is also investigated.
2003, Vol. 20 
