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LiTaO₃ 단결정 내의 Fe<SUP>3+</SUP> 상자성 불순물 이온에 대한 에너지 준위 계산
염태호(Tae Ho Yeom),윤달호(Dal Hoo Yoon),이수형(Soo Hyung Lee) 한국자기학회 2014 韓國磁氣學會誌 Vol.24 No.3
Ground state energy levels of the Fe<SUP>3+</SUP> paramagnetic impurity ion in stoichiometric LiTaO₃ and in congruent LiTaO₃ single crystals were calculated with electron paramagnetic resonance constants. Energy levels between six energy levels were obtained with spectroscopic splitting parameter g and zero field splitting constant D for Fe<SUP>3+</SUP> ion. The energy diagrams of Fe<SUP>3+</SUP> ion were different from different magnetic field directions ([100], [001], [111]) when magnetic field increases. The calculated ZFS energies of Fe<SUP>3+</SUP> ion in stoichiometric and congruent LiTaO₃ single crystals for |± 5/2>↔|± 3/2> and |± 3/2>↔|± 1/2> transitions were 12.300 GHz and 6.150 GHz, and 59.358 GHz and 29.679 GHz, respectively. It turns out that energy levels of Fe<SUP>3+</SUP> paramagnetic impurity in LiTaO₃ crystal are different from different crystal growing condition.