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이철의(C. E. Lee),윤은희(E. H. Yoon),이창훈(C. H. Lee),김건(K. Kim),전승준(S. J. Jeon) 한국자기학회 1993 韓國磁氣學會誌 Vol.3 No.1
We have studied CuF₂ㆍ2H₂O using ¹H and (19)^F pulsed nuclear magnetic resonance at 30 ㎒. From the data of lineshapes. the spin-lattice relaxation times (T₁) and the spin echo decay times. lattice dynamics in the structure is investigated. T₁ data from both ¹H and (19)^F NMR indicate that spin-lattice relaxation is dominated by the paramagnetic ion centers at the Cu sites. The lineshapes at room temperature appear to be strongly affected by exchange narrowing and motional narrowing.
¹H Nuclear Magnetic Relaxation in Impure CuF₂ㆍ2H₂O
이창훈(C. H. Lee),이철의(C. E. Lee),노승정(S. J. Noh) 한국자기학회 1995 韓國磁氣學會誌 Vol.5 No.5
We have studied the temperature dependence of the ¹H NMR spin-lattice relaxation for the impure CuF₂ㆍ2H₂O over a temperature range from 77 K to room temperature. We find that the remperature dependence of the ¹H spin-lattice relaxation is dominated by the eletron spin-flip and the Raman process of eletron spin-lattice relaxation. The electron spin-flip exchange energy was calculated to be 1.8( ± 0.04) K.