Antiferromagnetic resonance in TmFeO3
Balbashov A. M. , Kozlov G. V. , Lebedev S. P. , Prokhorov A. M. , Prokhorov A. S.
The observation of two absorption lines in submillimeter (SBMM) spectra of single crystals of TmFe03 (vl = 13 cm~ \ v2 = 23.9 cm'1 at Τ = 300 К) is reported. These lines are interpreted as two branches of the antiferromagnetic resonance (AFMR), which are characteristic for orthorhombic antiferromagnets.