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VTE 처리된 강유전 LiNbO₃ 단결정 내의 Nd³+와 Er³+ 초미세 구조의 비등방성
박일우(I.-W. Park),조성호(S. H. Choh),김영미(Y. M. Kim),전웅(U. Chon),김상수(S. S. Kim),김원정(W. J. Kim),김봉구(B. G. Kim),손재민(J. M. Sohn) 한국자기학회 2005 韓國磁氣學會誌 Vol.15 No.2
We have obtained sharp and clearly resolved ESR spectra of Nd³+ and Er³+ in vapor transport equilibrium (VTE) treated LiNbO₃ crystals, consequently have determined more accurate spin Hamiltonian parameters, than those in congruent samples. The anisotropic hyperfine structures of ¹⁴³Nd³+ and (145)^Nd³+ in the VTE-treated crystals at liquid helium temperature have been analyzed. It is proposed that both rare earth ions favor the lithium site in LiNbO₃ from the consideration of the determined anisotropic g-values.