Accession Number : AD0689401

Title :   THE ZEEMAN SPECTRA OF Gd3+ IN CaF2 AT CUBIC SITES.

Descriptive Note : Technical rept.,

Corporate Author : DAYTON UNIV OHIO RESEARCH INST

Personal Author(s) : Detrio,John A.

Report Date : MAY 1969

Pagination or Media Count : 38

Abstract : The octet S7/2 ground state Gd3+ is split only 0.149/cm by the cubic crystal field in CaF2 and is described at 11.3 kG by the projection quantum number J sub Z referred to the magnetic field axis and behaves like a spin 7/2 system with an isotropic g value of 1.991. The excited states are most conveniently described with reference to the 4-fold axes. The calculation of the dependence of the Zeeman spectra of Gd3+ in CaF2 at sites of cubic symmetry on crystal orientation, therefore, requires transformation of one set of basis to a common Cartesian reference frame. The Zeeman spectra shows the states of the crystal field split hextet P(7/2) and hextet P(5/2) multiplets. The transitions are magnetic dipole in agreement with the results for other rare earth ions at cubic sites. Experimental and calculated splittings are compared. (Author)

Descriptors :   (*CRYSTAL DEFECTS, GADOLINIUM), (*GADOLINIUM, *ZEEMAN EFFECT), (*CALCIUM FLUORIDES, CRYSTAL DEFECTS), IMPURITIES, WAVE FUNCTIONS, ATOMIC ENERGY LEVELS, MAGNETIC FIELDS, ELECTRON TRANSITIONS

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE