Ferromagnetic resonance in FeCl2 and FeBr2 |
| |
| Authors: | AR Fert J Leotin JC Ousset D Bertrand P Carrara S Askenazy |
| |
| Institution: | Laboratoire de Physique des Solides, associé au C.N.R.S., I.N.S.A., Départment de Physique, Avenue de Rangueil, 31077 Toulouse-Cedex, France |
| |
| Abstract: | We have used far-i.r. radiations from a HCN laser (336.55 and 310.88 μm) in conjunction with a pulsed magnetic field (0–350 kOe) to observe the ferromagnetic resonance absorption in FeCl2 and FeBr2 monocrystals. The resonant lines were obtained for high magnetic field (? 100 kOe) well above the metamagnetic transition field and correspond to the excitation of ferromagnetic magnons at k = 0. From experimental results we found that the gz spectroscopic tensor component of both FeCl2 and FeBr2 is gz = 3.7 ± 0.05 and that the gap energies of antiferromagnetic magnons in zero field are respectively 16 and 17.3 cm-1 for FeCl2 and FeBr2. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
