Solid State Properties of Non-Conducting Materials of Simple Monatomic and Diatomic Species
Abstract
Analysis of crystal structures of heavy rare gases has been made such that the cubic structure becomes more stable if deviations from the assumption of two body forces are taken into account. Since, in principle, there occur many possible types of such many body interactions, a systematic analysis of these various effects was undertaken, based on a cluster expansion and making use of a perturbation treatment. Simultaneously, a number of pilot calculations was carried out to acquire better insight in the different characteristics of the various possible many body effects. From the analysis of spectra from trapped free radicals in molecular crystals it was found that an argon matrix behaves to some extent like a nitrogen matrix. To provide a basis for the explanation of this curious phenomenon, it was shown that the crystal field in solid argon is not simply the sum of fields from separate atoms, but that deviations occur in the form of higher multiple moments induced by electron exchange between neighboring atoms.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 1961
- Accession Number
- AD0268215
Entities
People
- Laurens Jansens
Organizations
- Battelle Memorial Institute