PARAMAGNETIC RESONANCE ABSORPTION OF MN PLUS PLUS IN SINGLE CRYSTALS OF CA CO SUB 3
Abstract
Paramagnetic resonance absorption of Mn++ at 9300 mc has been studied using single crystals of CaCo3 containing 0.06 per cent by weight Mn++ ions. The Mn++ spectra consists of 30 well resolved lines, approximately 3.5 gauss wide and extending over a range of 1100 gausss with a large dependence upon angular orientation between crystal axes and external magnetic field. The theory pertaining to the Mn++ resonance absorption in the CaCO3 crystal is developed and presented. The interpretation of the observed spectra is based upon crystalline field effects plus nuclear hyperfine interaction. The spectroscopic g factor is found to be essentially isotropic. The hyperfine strucutre factors A' and B' are found to be nearly equal. The fine structure constants D' and d are determined. The values assigned are: g = 2.0022 A = 8.782 x 10 - to the third power cm - to the first power D' = 3.75 x 10 - to the third power cm - to the first power g = 2.0014 B' = 8.774 x 10 - to the third power cm - to the first power d' = 4.00 x 10 - to the sixth power cm - to the first power. Small discrepancies between theory and experiment are found as well as unexpected and unexplained line splittings at certain angular orientations. (Contractor's abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1953
- Accession Number
- AD0021406
Entities
People
- F. K. Hurd
- M. Sachs
- W. D. Herschberger
Organizations
- University of California, Los Angeles