Accession Number:

ADA037179

Title:

Rare Earth Ion-Host Lattice Interactions 14. Lanthanide Pentaphosphates

Descriptive Note:

Technical rept.

Corporate Author:

HARRY DIAMOND LABS ADELPHI MD

Personal Author(s):

• Morrison, Clyde A.
• Wortman, Donald E.
• Karayianis, Nick

Report Date:

1977-02-01

Pagination or Media Count:

44.0

Abstract:

Previously reported spectra of the pentaphosphates of Nd3 and Eu3 are analyzed by diagonalizing a parametrized C sub S C sub 1h Hamiltonian in free-ion bases involving the five and seven lowest J-multiplets, respectively, of each ion. By reassigning symmetries to the reported Eu levels according to predictions from scaled crystal field parameters, B sub km, that fit 28 Nd3 levels to 7.61 cm, a fit of 10.43 cm to 46 Eu3 levels is obtained. Predicted B sub km and energy levels for all the lanthanide pentaphosphates are then obtained.

Descriptors:

• *ABSORPTION SPECTRA
• *FLUORESCENCE
• *LATTICE DYNAMICS
• *RARE EARTH COMPOUNDS
• ENERGY LEVELS
• HAMILTONIAN FUNCTIONS
• IONS
• LANTHANUM INTERMETALLICS
• NEODYMIUM COMPOUNDS
• PHOSPHATES
• SPECTROSCOPY
• TABLES(DATA)
• WAVE FUNCTIONS

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy
• Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE