Anisotropy of magnetic properties in LaMnO3 single crystals

The magnetization M and the magnetic susceptibility χ of single crystals LaMnO3 have been studied as functions of external magnetic field H (up to 50 kOe), angle φ between the field direction and a crystallographic axis in the LaMnO3 lattice, and temperature T. At T=2 K the spontaneous magnetization M0 and the magnetic susceptibility along the main directions a, b, c in the orthorhombic lattice (Pnma) of LaMnO3 are 6.5 emu/g and χb≈χc≈2χa≅0.00013 cm3/g, respectively. The results support a canted AaFb-type magnetic structure, however the spin–flop transition at H<50 kOe was not observed.