ESR absorption spectrum of Gd3+ in single crystal Y2O3
Document Type
Article
Publication Date
1-1-1982
Abstract
Two electron-spin-resonance absorption spectra, each due to trivalent gadolinium, have been observed in single crystals of yttria, Y2O3. These spectra were observed at room temperature, 77 K, and 4.2 K with a spectrometer operating at 0.85-cm wavelength. One of these spectra exhibits trigonal symmetry with its principal direction being parallel to a crystal body diagonal. The other spectrum exhibits orthorhombic symmetry whose three mutually orthogonal directions are along a crystal cube edge and two crystal face diagonals. Both spectra exhibit resolved hyperfine structure. Fine-structure and hyperfine-structure parameters are given for both spectra. For the orthorhombic gadolinium ion, a slight displacement in the fine-structure spectrum of Gd157 from the spectrum due to the even-numbered isotopes is observed. This displacement can be expressed as a relative increase of about six parts in 104 in the value of B20. No analogous shift is observed in the trigonal spectrum of Gd157. © 1982 The American Physical Society.
Publication Title
Physical Review B
Recommended Citation
Marshall, S.,
Marshall, T.,
&
Yuster, P.
(1982).
ESR absorption spectrum of Gd3+ in single crystal Y2O3.
Physical Review B,
25(3), 1505-1513.
http://doi.org/10.1103/PhysRevB.25.1505
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9982