Supplementary Material for BSc Physics Final Year Project.
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Video A : Sudden release of frustration via the Helfrich-Hurault (HH) instability (
$N = 50$ ,$B_e = 0.4$ ) -
Video B : Initial observation of a Topological Change
$Q = +1 \longrightarrow Q = -3$ . ($N = 50$ ,$B_e = 1.1$ ) -
Video C : Twist followed by undulations on the central skyrmion. (
$N = 100$ ,$B = 9.75 \mu{}N\text{m}^{-1}$ ) -
Video D : Introduction of many twists with no evidence of undulations (not ran to stability) (
$N = 150$ ,$B = 24.375 \mu{}N\text{m}^{-1}$ ) - Video E: Vanishing followed by stabilisation of twist (left) compared to vanishing twist observed by Foster et al (right).
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Video F: Smooth removal of twist when the wavelength of initial twist is much smaller than helical pitch
$p$ .