Current-induced viscoelastic topological unwinding of metastable skyrmion strings

• Published in: Nature communications Vol. 8; no. 1; pp. 1332 - 8
• Main Authors: Kagawa, Fumitaka, Oike, Hiroshi, Koshibae, Wataru, Kikkawa, Akiko, Okamura, Yoshihiro, Taguchi, Yasujiro, Nagaosa, Naoto, Tokura, Yoshinori
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 06.11.2017; Nature Publishing Group; Nature Portfolio
• Subjects: 639/301/119/1001; 639/301/119/997; Computer simulation; Critical current density; Hall effect; Humanities and Social Sciences; multidisciplinary; Pulse duration; Science; Science (multidisciplinary); Strings; Unwinding; Viscoelasticity

In the MnSi bulk chiral magnet, magnetic skyrmion strings of 17 nm in diameter appear in the form of a lattice, penetrating the sample thickness, 10–1000 μm. Although such a bundle of skyrmion strings may exhibit complex soft-matter-like dynamics when starting to move under the influence of a random...