SUPEREXCHANGE INTERACTION BETWEEN MAGNETIC ION PAIRS AND SUPER TRANSFERRED HYPERFINE INTERACTION IN WEAKLY COVALENT CRYSTALS.

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Abstract:

The Dirac-Van Vleck-Serbers method of configuration interaction is extended and systematized in order to handle the interaction between transition metal ions. Specific applications are made to the following problems i Exchange interaction between nearest V2 neighbors in KMgF3 collinear superexchange ii Exchange interaction between nearest V2 neighbors in MgO right angle superexchange iii Superexchange interaction between next nearest V2 and Ni2 neighbors in MgO exchange between inequivalent ions. The change in hyperfine field at a magnetic cation site due to cation - cation interaction is also calculated.

Author(s):
Huang, Nai Li
Author Organization(s):
CALIFORNIA UNIV LOS ANGELES DEPT OF PHYSICS
Descriptive Note:
Technical rept.,
Pagination:
0178

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
Nonr-233(88)
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*DIELECTRICS, INTERACTIONS), (*PARAMAGNETIC MATERIALS, INTERACTIONS), (*VANADIUM, ATOMIC ORBITALS), (*NICKEL, ATOMIC ORBITALS), (*ATOMIC ORBITALS, EXCHANGE REACTIONS), MATHEMATICAL MODELS, PERMUTATIONS, WAVE FUNCTIONS, IONS, CRYSTAL LATTICES, POTASSIUM COMPOUNDS, MAGNESIUM COMPOUNDS, FLUORIDES, MAGNESIUM OXIDES, ATOMIC ENERGY LEVELS, INTEGRALS, NUCLEAR SPINS, ELECTROSTATICS, HYPERFINE STRUCTURE, CHEMICAL BONDS, MOLECULAR ORBITALS
Field(s)/Group(s):
Electricity and Magnetism, Atomic and Molecular Physics and Spectroscopy, Solid State Physics
Keyword(s):
MAGNESIUM OXIDES, NICKEL(II) IONS, IONS, TRANSITION METALS
Report Date:
1966 Dec 01