Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi
arXiv:1511.04972v1
Authors:
T Lancaster, F Xiao, Z Salman, IO Thomas, Stephen J Blundell, FL Pratt, SJ Clark, T Prokscha, A Suter, SL Zhang, Alexander A Baker, Thorsten Hesjedal
Abstract:
We present the results of transverse-field muon-spin rotation measurements on an epitaxially grown 40 nm-thick film of MnSi on Si(111) in the region of the field-temperature phase diagram where a skyrmion phase has been observed in the bulk. We identify changes in the quasistatic magnetic field distribution sampled by the muon, along with evidence for magnetic transitions around T ≈ 40 K and 30 K. Our results suggest that the cone phase is not the only magnetic texture realized in film samples for out-of-plane fields.
