Skyrmion lattice domains in Fe1-xCoxSi

T. Adams, S. Mühlbauer, A. Neubauer, W. Münzer, F. Jonietz, R. Georgii, B. Pedersen, P. Böni, A. Rosch, C. Pfleiderer

Research output: Contribution to journalConference articlepeer-review

26 Scopus citations


The strongly doped semiconductor Fe1-xCoxSi displays a dome of helimagnetic order for 0.05 ≤ x ≤ 0.7. We report small angle neutron scattering of the magnetic structure in the skyrmion lattice phase of Fe1-xCoxSi for x = 0.2 and magnetic field parallel to a crystallographic (100) direction. We observe twelve equally spaced maxima of scattering intensity on a ring, with an underlying six-fold symmetry of two sets of six spots. The intensity distribution suggests the formation of two degenerate skyrmion lattice domain populations with respect to the four-fold symmetry of the (100) directions in the scattering plane.

Original languageEnglish
Article number032001
JournalJournal of Physics: Conference Series
Issue numberSECTION 3
StatePublished - 2010


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