Physics – General Physics
Scientific paper
2010-01-24
Physics
General Physics
13 pages, 4 figures
Scientific paper
It has been shown that to calculate the parameters of the electrostatic field of the ion crystal lattice it sufficient to take into account ions located at a distance of 1-2 lattice spacings. More distant ions make insignificant contribution. As a result, the electrostatic energy of the ion lattice in the alkaline halide crystal produced by both positive and negative ions is in good agreement with experiment when the melting temperature and the shear modulus are calculated. For fcc and bcc metals the ion lattice electrostatic energy is not sufficient to obtain the observed values of these parameters. It is possible to resolve the contradiction if one assumes that the electron density is strongly localized and has a crystal structure described by the lattice delta - function. As a result, positive charges alternate with negative ones as in the alkaline halide crystal. Such delta-like localization of the electron density is known as a model of nearly free electrons.
No associations
LandOfFree
Crystal Electrostatic Energy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Crystal Electrostatic Energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystal Electrostatic Energy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-696342