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Chiral Magnetic Soliton Lattice on a Chiral Helimagnet

Y. Togawa, T. Koyama, K. Takayanagi, S. Mori, Y. Kousaka, J. Akimitsu, S. Nishihara, K. Inoue, A. S. Ovchinnikov, and J. Kishine
Phys. Rev. Lett. 108, 107202 – Published 5 March 2012
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Abstract

Using Lorenz microscopy and small-angle electron diffraction, we directly present that the chiral magnetic soliton lattice (CSL) continuously evolves from a chiral helimagnetic structure in small magnetic fields in Cr1/3NbS2. An incommensurate CSL undergoes a phase transition to a commensurate ferromagnetic state at the critical field strength. The period of a CSL, which exerts an effective potential for itinerant spins, is tuned by simply changing the field strength. Chiral magnetic orders observed do not exhibit any structural dislocation, indicating their high stability and robustness in Cr1/3NbS2.

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  • Received 16 October 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.107202

© 2012 American Physical Society

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New Twist in Chiral Magnets

Published 5 March 2012

A new state of matter involving twisting magnetic moments has been observed for the first time, possibly opening up novel applications in information technology.

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Authors & Affiliations

Y. Togawa1,2, T. Koyama3, K. Takayanagi1, S. Mori2,3, Y. Kousaka4, J. Akimitsu4, S. Nishihara5, K. Inoue5,6, A. S. Ovchinnikov7, and J. Kishine8

  • 1N2RC, Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan
  • 2JST, CREST, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
  • 3Department of Materials Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
  • 4Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
  • 5Department of Chemistry, Faculty of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  • 6IAMR, Facility of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan
  • 7Department of Physics, Ural Federal University, Ekaterinburg, 620083, Russia
  • 8Department of Basic Sciences, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan

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Issue

Vol. 108, Iss. 10 — 9 March 2012

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