Neutron scattering on LaMnO3
Magnon dispersion by inelastic neutron scattering
Fits well to
H= -SJijSiSi
-DS Szz2
Where
J1 =0.2 THz, or 0.83 meV or 9.6 K (in-plane)
J2= - 0.14 THz or -20.58 meV or -26.7 K (between-planes)
D= 0.04 THz or 0.165 meV or 1.92 K (anisotropy)
From:
F. Moussa, M. Hennion, J. Rodriguez-Carvajal, H. Moudden
L. Pinsard and A. Revcolevschi
S. Mitsudo, K. Hirano, H. Nojiri, M. Motokawa, K. Hirota,
A. Nishizawa, N. Kaneko, Y. Endoh
"Spin waves in the antiferromagnet perovskite LaMnO3: A neutron-scattering study
",
Phys. Rev B 54, 15149 (1996)
