Skyrmionic LEGO- entangled skyrmion networks in chiral magnets and liquid crystals

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I finalized a systematic study of the stability and ordering of low temperature magnetic states in the bulk helimagnet Cu2OSeO3 done in collaboration with the group of Katia Pappas (Delft university, the Netherlands). We focused our attention on the temperature and field dependencies of the tilted spiral state that we observed persisting up to above T=35 K, i.e. up to higher temperatures than reported so far. Since the stability region of the skyrmion phase displays strongly hysteretic behavior for increasing and decreasing magnetic fields, we addressed this important point using micromagnetic simulations and came to the conclusion that skyrmion nucleation is underpinned by the reorientation of oblique spiral domains occurring near the critical magnetic fields of the phase diagrams.