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The Paramagnetic Resonance of Nd 3+ and Yb 3+ in Zircon Structure Silicates
Author(s) -
Ball D.
Publication year - 1982
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221110135
Subject(s) - hyperfine structure , zircon , electron paramagnetic resonance , zeeman effect , spectral line , ion , anisotropy , resonance (particle physics) , paramagnetism , atomic physics , chemistry , nuclear magnetic resonance , physics , condensed matter physics , magnetic field , optics , astronomy , nuclear physics , organic chemistry , quantum mechanics
The electron paramagnetic resonance of the rare‐earth ions Nd 3+ (4f 3 ) and Yb 3+ (4f 13 ) in synthetic single crystals of zircon and hafnon is reported. The spectra, taken to be axial, have highly anisotropic g ‐values making it possible to observe the spectra fully only along one axis. For Nd 3+ g ‖ < 0.5 and for Yb 3+ g ⊥ < 0.5 Fully resolved hyperfine structure is observed for Nd 3+ in ⊥ direction and for Yb 3+ in ⊥‐direction. The spin Hamiltonian parameters are established by fitting the spectra observed for various angles θ between ‖‐ and ⊥ ‐directions. The parameters indicate the resonance takes place between the Zeeman split levels of an isolated doublet, though fitting the g ‐values fully would require consideration of level mixing.