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. 2016 Apr 5;113(18):4918–4923. doi: 10.1073/pnas.1600197113

Fig. 2.

Fig. 2.

Evolution of spin texture with magnetic field in a 270-nm FeGe nanodisk at temperature T = 220 K. (A–L) Magnetic-field dependence of the spin texture for (A) 0 kOe, (B) 0.44 kOe, (C) 0.47 kOe, (D) 0.51 kOe, (E) 0.52 kOe, (F) 0.56 kOe, (G) 1.01 kOe, (H) 1.11 kOe, (I) 1.37 kOe, (J) 1.41 kOe (Ns = 2), (K) 1.41 kOe (Ns = 1), and (L) 1.43 kOe. The bright spots represent skyrmions obtained by direct Lorentz TEM imaging, and dotted circles in J and K are used to guide the eye. (M) The quantized phase transitions between Ns = 6 and Ns = 5 cluster states. (N) The transitions between Ns = 2 and Ns = 1 cluster states. (O) The phase diagram in H space. The indicator “Ns = 6/5” represents the jumping state between Ns = 6 and Ns = 5 states, and so forth.