Vi. Valkov et al., LOW-TEMPERATURE TRANSITION ORDER ORDER IN SOME FEA-XMNXAS ALLOYS AT A-APPROXIMATE-TO-1,5, Fizika nizkih temperatur, 20(4), 1994, pp. 314-319
The cascade of magnetic phase transitions from the paramagnetic phase
to the phase of coexistence of ferri-and antiferromagnetism that been
studied in Fe(a-x)Mn(x)As alloys at a almost-equal-to 1.5. A phenomeno
logical model for explanation of results is proposed. The model is bas
ed on Moriya ideas on interaction of magnetic modes of different symme
tries.