Precursor Phenomena at the Magnetic Ordering of the Cubic Helimagnet FeGe
Precursor Phenomena at the Magnetic Ordering of the Cubic Helimagnet FeGe
We report on detailed magnetic measurements on the cubic helimagnet FeGe in external magnetic fields and temperatures near the onset of long-range magnetic order at ${T}_{C}=278.2(3)\text{ }\text{ }\mathrm{K}$. Precursor phenomena display a complex succession of temperature-driven crossovers and phase transitions in the vicinity of ${T}_{C}$. The $A$-phase region, present below …