Structure-Property Relationships in Intercalated Graphite.
Abstract
Under this contract a study has been carried out on the electronic, lattice, magnetic, structural, and thermal transport properties of intercalated graphite, including the modeling of these properties. The research program being carried out under this grant has been directed toward gaining an increased and fundamental understanding of the properties of graphite intercalation compounds in order to be able to produce better materials with more controlled physical properties. By using diverse experimental techniques it is possible to correlate and interrelate the electronic, lattice, structural, magnetic and thermal transport properties of intercalated graphite and to interpret the dependence of these properties on the stage of the intercalation compound. During the two year period of this contract major advances have been made in each of these areas. Particularly noteworthy is the use of high resolution electron microscopy to monitor the c-axis and in-plane ordering on an atomic scale. Using single crystal Kish graphite host material, we have found evidence for large regions of defect-free single phase intercalant superlattices with dimensions of at least one order of magnitude greater than expected on the basis of previous work. A major advance has been made in the use of high resolution x-ray scattering to study structural phase transitions in the graphite-bromine system. Work on superconducting compounds has been initiated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1982
- Accession Number
- ADA121236
Entities
People
- G. Dresselhaus
- M. S. Dresselhaus
Organizations
- Massachusetts Institute of Technology