Extended Data Fig. 3: Magnetic phase diagrams and several over-focused Lorentz TEM images observed in the (001) thin plate of Co8Zn9Mn3 with varying temperature T and external magnetic field B.
From: Transformation between meron and skyrmion topological spin textures in a chiral magnet
a, Phase diagram of the magnetic structure observed after 60-mT field cooling with increasing B (red dashed arrows), decreasing (black arrow) B and then increasing T (blue dashed arrow). b, Phase diagram of the magnetic structure observed after field cooling with various cooling fields (indicated by red dashed arrows). H + M shows the mixed structure of helices (dominant) and merons (minor). The open circles specify the (T, B) points that we measured. The dark blue region shows the helical phase. c–f, Over-focused Lorentz TEM images observed for different T and B, indicated by black solid circles in a (c, d) and yellow solid circles in b (e, f).
