Fig. 2: Properties of the MnP sample.
From: Electric current control of spin helicity in an itinerant helimagnet
a Crystal structure of MnP. The black line represents the unit cell. b Temperature dependence of the resistivity for the present MnP sample fabricated by using a focused ion beam. The resistivity of a bulk (millimeter scale) sample previously measured by Shiomi et al.21 is reproduced for comparison. The inset shows the history dependence of resistivity around the helical–ferromagnetic phase boundary. c The phase diagram of the microfabricated MnP sample for H∣∣a. The red dots are the phase boundaries estimated by the magnetic field dependence of electrical resistivity (see Supplementary Note 2). The black lines are guides for the eyes. In the hatched region, the realized magnetic structure depends on the hysteresis. The green arrow suggests the poling procedure. d Illustrations of fan and conical magnetic structures.
