Open AccessTHE ELECTRON PARAMAGNETIC RESONANCE STUDY OF Fe ION IN α-Al2O3 SINGLE CRYSTAL
Author(s) -
Jin Tong,
SangIk Han,
Sui Yun-Xia
Publication year - 1988
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.37.147
Subject(s) - electron paramagnetic resonance , ion , paramagnetism , electron , hamiltonian (control theory) , crystal (programming language) , single crystal , materials science , crystallography , nuclear magnetic resonance , atomic physics , physics , condensed matter physics , chemistry , quantum mechanics , computer science , programming language , mathematical optimization , mathematics
The electron paramagnetic resonance of Fe3+ ion in α-Al2O3 single crystal has been studies at room temperature in x-band. It is found that Fe3+ ions occupy actually four magnetically unequivalent sites. The Fe3+ ions in two kinds of sites between adjacent planes of oxygens have same Spin Hamiltonian Parameters (SHP), but have different SHP in the sites between next adjacent planes of oxygens. Two groups of SHP are: (1) g‖=2.001, g⊥= 2.003, D= 1679×10-4 cm-1, |a| =237×l0-4cm-1, a-F = 317×10-4cm-1. (2) g‖ = 2.001, g⊥= 2.006, D=l660×10-4cm-1, |a| = 243×10-4cm-1, a-F=338×10-4cm-1.