title: Chiral Surface Twists and Skyrmion Stability in Nanolayers of Cubic Helimagnets.
abstract: Theoretical analysis and Lorentz transmission electron microscopy (LTEM) investigations in an FeGe wedge demonstrate that chiral twists arising near the surfaces of noncentrosymmetric ferromagnets [Meynell et al., Phys. Rev. B 90, 014406 (2014)] provide a stabilization mechanism for magnetic Skyrmion lattices and helicoids in cubic helimagnet nanolayers. The magnetic phase diagram obtained for freestanding cubic helimagnet nanolayers shows that magnetization processes differ fundamentally from those in bulk cubic helimagnets and are characterized by the first-order transitions between modulated phases. LTEM investigations exhibit a series of hysteretic transformation processes among the modulated phases, which results in the formation of the multidomain patterns.
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|IFW Dresden, Postfach 270016, D-01171 Dresden, Germany.|Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands.
authors: A O
authors: AO
authors: Leonov
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan.|School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.|JST, PRESTO, 4-1-8 Honcho Kawaguchi, Saitama 333-0012, Japan.
authors: Y
authors: Y
authors: Togawa
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia B3H 3J5, Canada.
authors: T L
authors: TL
authors: Monchesky
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|IFW Dresden, Postfach 270016, D-01171 Dresden, Germany.
authors: A N
authors: AN
authors: Bogdanov
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|The Open University of Japan, Chiba 261-8586, Japan.
authors: J
authors: J
authors: Kishine
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
authors: Y
authors: Y
authors: Kousaka
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
authors: M
authors: M
authors: Miyagawa
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
authors: T
authors: T
authors: Koyama
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
authors: J
authors: J
authors: Akimitsu
authors: Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan.
authors: Ts
authors: Ts
authors: Koyama
authors: Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan.
authors: K
authors: K
authors: Harada
authors: Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan.
authors: S
authors: S
authors: Mori
authors: School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors: D
authors: D
authors: McGrouther
authors: School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors: R
authors: R
authors: Lamb
authors: School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors: M
authors: M
authors: Krajnak
authors: School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors: S
authors: S
authors: McVitie
authors: School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors: R L
authors: RL
authors: Stamps
authors: Center for Chiral Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan.|IAMR, Facility of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan.
authors: K
authors: K
authors: Inoue