Accession Number:

AD0604090

Title:

NON-DIPOLAR INTERACTION BETWEEN NEAREST NEIGHBOR NEODYMIUM IONS IN THE ETHYL SULFATE.

Descriptive Note:

Technical rept. no. 12,

Corporate Author:

CALIFORNIA UNIV BERKELEY

Personal Author(s):

• BAKER,J. M.

Report Date:

1964-08-01

Pagination or Media Count:

33.0

Abstract:

Measurements made on the EPR spectrum of a pair of interacting nearest neighbor neodymium ions in lanthanum ethyl sulphate show that the interaction is predominantly dipolar but that there is also a non-dipolar interaction. A semiquantitative discussion is given of the possible origins of this non-dipolar contribution including superexchange, electric quadrupole-quadrupole, and virtual phonon exchange interactions. Author

Descriptors:

• *NEODYMIUM
• *LANTHANUM COMPOUNDS
• ELECTRIC MOMENTS
• IMPURITIES
• CRYSTAL LATTICES
• ORGANOMETALLIC COMPOUNDS
• SULFATES
• IONS
• MICROWAVE SPECTROSCOPY
• PARAMAGNETIC RESONANCE
• EXCHANGE REACTIONS
• DIPOLE MOMENTS
• QUADRUPOLE MOMENT
• PHONONS
• ELECTRON TRANSITIONS
• HYPERFINE STRUCTURE

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE