Accession Number : AD0707928

Title :   UNUSUAL HYPERFINE SPECTRA OF Yb(3 plus) IN SCHEELITES,

Corporate Author : HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s) : Sattler,Joseph P. ; Nemarich,Joseph

Report Date : APR 1970

Pagination or Media Count : 19

Abstract : The tetragonal X-band electron paramagnetic resonance spectrum of Yb3+ shows an unusual hyperfine spectrum in the laser host scheelite crystals SrWO4, SrMoO4, PbWO4, and PbMoO4. For these crystals the principal 2I + 1 hyperfine absorption lines of the parallel spectrum do not go continuously into the 2I + 1 lines of the perpendicular spectrum as the angle of the magnetic field is varied from the crystal c-axis. At some angles more than the usual 2I + 1 transitions are observed. This unusual behavior is completely explained by the axial spin-Hamiltonian and the relatively large ratio of B/A for Yb3+ in these crystals. (Author)

Descriptors :   (*LASERS, IMPURITIES), (*YTTERBIUM COMPOUNDS, *PARAMAGNETIC RESONANCE), ELECTRON PARAMAGNETIC RESONANCE, HYPERFINE STRUCTURE, LEAD COMPOUNDS, STRONTIUM COMPOUNDS, MOLYBDATES, TUNGSTATES, CRYOGENICS

Subject Categories : Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE