Accession Number : AD0670983

Title :   ENERGY LEVEL SCHEME FOR NP(4+) IN PBMOO4,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF PHYSICS

Personal Author(s) : Sharma,Kailash Kumar

Report Date : 20 MAY 1968

Pagination or Media Count : 159

Abstract : Np-doped (Na-charge compensated) crystals of PbMoO4 were grown by the Czochralski method. The absorption spectrum between 5000 and 25,000/cm and the fluorescent spectrum between 4000 and 7000/cm were obtained. The free-ion parameters obtained from a least squares fit to the five lowest free ion levels neglecting configuration mixing are E(1) = 2970/cm; E(2) = 14.01/cm; E(3) =312.1/cm and xi5f = 2089.2/cm. The r.m.s. deviation for this fit was 22/cm. A first order field perturbation calculation was also carried out.

Descriptors :   (*MOLYBDATES, CRYSTAL DEFECTS), (*CRYSTAL DEFECTS, NEPTUNIUM), (*NEPTUNIUM, *ATOMIC ENERGY LEVELS), LEAD COMPOUNDS, SINGLE CRYSTALS, IMPURITIES, IONS, ABSORPTION SPECTRA, FLUORESCENCE, PERTURBATION THEORY, LEAST SQUARES METHOD, STARK EFFECT, COMPUTER PROGRAMS

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE