Theory of Anharmonic Lattice Vibration in Metallic Fine Particles. II: Application to Mossbauer Spectroscopy

Abstract

The self-consistent Einstein model applied to the theory of anharmonic vibration in metallic fine particles is extended so as to cover the low temperature regions with an application to the Mössbauer spectroscopy of metallic fine particles. A numerical calculation of the Mössbauer fraction as a function of temperature and particle size is performed for Ag using the Gaussian potential determined in the previous paper, and the trend of the theoretical results is discussed in comparison with the experimental data on Au fine particles.