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arXiv · 1511.04972

Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi

T. Lancaster·F. Xiao·Z. Salman·I. O. Thomas·S. J. Blundell·F. L. Pratt·S. J. Clark·T. Prokscha·A. Suter·S. L. Zhang·A. A. Baker·T. Hesjedal
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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 $T\approx 40$ 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.

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T. Lancaster, F. Xiao, Z. Salman, I. O. Thomas, S. J. Blundell, F. L. Pratt, S. J. Clark, T. Prokscha, A. Suter, S. L. Zhang, A. A. Baker, T. Hesjedal. 2016-04-26. Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi. https://doi.org/10.1103/physrevb.93.140412

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