Hyperfine and Superhyperfine Interactions in the EPR Perpendicular Spectra of Cu^<2+> in NH_4Br (Acidic)

概要

論文の詳細を見る
The study of the perpendicular part of the Electron Paramagnetic Resonance spectra of Cu^<2+>, characterized by a variable number of lines when doped in Ammonium Bromide, has been extended examining crystals grown in acidic solution (pH≈1.6). The 19 lines of the spectra that have been observed at 300 K are interpreted like in our quite recent study of Cu^<2+>:NH_4Br (basic). The new hf parameter is A_⊥=66±2 (the values of A are given in units of 10^<-4>cm^<-1>) and the shf parameter is A'_⊥=47±3. At 77 K the spectra have ten lines and are interpreted combining seven shf lines and four hf lines. The parameters determined are: g_z=2.048±0.005, g_x=2.284±0.005, g_y=2.189±0.005, A_z=108±3, A_x=78±3, A_y=0±3, A'_x=0±3 and A'_y=76±3. The hf and shf interactions are in the same order and are responsible for the characteristic spectra.
社団法人日本物理学会の論文
1994-06-15