Theory of Ferrimagnetic Insulators, Alloys and Magnetic Impurities.

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Abstract:

The electronic structure of uranium ions in insulating host materials has been determined, enabling one to explain the magnetic behavior of the uranium iodide and oxide compounds. The optical properties of the laser ion, chromium, in GdAlO3 have been explained. The cause of the anomolous behavior of the magnetic susceptibility of Ce compounds has been understood. The behavior of helimagnets in magnetic fields has been studied and the phase diagrams in external magnetic fields have been constructed. The electronic conductivity of a one-dimensional model for a substitutional alloy and of a multilayer semiconductor has been determined. Finally, new methods for the solution of the transport equation in solids have been developed and applied in the areas of heat transport through insulators and neutron transport through reactors. Author

Author(s):
Erdos, Paul
Author Organization(s):
FLORIDA STATE UNIV TALLAHASSEE DEPT OF PHYSICS
Descriptive Note:
Final rept.,
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOSR-70-2501TR
Contract/Grant Number(s):
AF-AFOSR-1745-69
Task Number(s):
976101
Project Number(s):
AF-9761
Monitor Series:
70-2501TR
 Subject Terms
Communities of Interest:
Advanced Electronics
Descriptor(s):
(*DIELECTRICS, MAGNETIC PROPERTIES), ANTIFERROMAGNETISM, ELECTRICAL CONDUCTIVITY, SOLID SOLUTIONS, TRANSPORT PROPERTIES, SEMICONDUCTORS, IMPURITIES, URANIUM COMPOUNDS, CERIUM COMPOUNDS, SODIUM COMPOUNDS, CHROMIUM COMPOUNDS, SULFIDES
Field(s)/Group(s):
Electricity and Magnetism, Solid State Physics
Keyword(s):
MAGNETIC ORDERING, MAGNETIC IMPURITIES, MAGNETIC SUSCEPTIBILITY, ELECTRON GAS, FERRIMAGNETIC MATERIALS
Report Date:
1970 Oct 01