Interlayer Magnetoresistance due to Chiral Soliton Lattice Formation in Hexagonal Chiral Magnet CrNb3S6

Y. Togawa, Y. Kousaka, S. Nishihara, K. Inoue, J. Akimitsu, A. S. Ovchinnikov, and J. Kishine
Phys. Rev. Lett. 111, 197204 – Published 7 November 2013

Abstract

We investigate the interlayer magnetoresistance (MR) along the chiral crystallographic axis in the hexagonal chiral magnet CrNb3S6. In a region below the incommensurate-commensurate phase transition between the chiral soliton lattice and the forced ferromagnetic state, a negative MR is obtained in a wide range of temperature, while a small positive MR is found very close to the Curie temperature. Normalized data of the negative MR almost falls into a single curve and is well fitted by a theoretical equation of the soliton density, meaning that the origin of the MR is ascribed to the magnetic scattering of conduction electrons by a nonlinear, periodic, and countable array of magnetic soliton kinks.

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  • Received 29 August 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.197204

© 2013 American Physical Society

Authors & Affiliations

Y. Togawa1,2,*, Y. Kousaka3, S. Nishihara4, K. Inoue4,5, J. Akimitsu3, A. S. Ovchinnikov6, and J. Kishine7

  • 1N2RC, Osaka Prefecture University, 1-2 Gakuencho, Sakai, Osaka 599-8570, Japan
  • 2JST, PRESTO, 4-1-8 Honcho Kawaguchi, Saitama 333-0012, Japan
  • 3Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
  • 4Department of Chemistry, Faculty of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
  • 5IAMR, Facility of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8530, Japan
  • 6Institute of Natural Sciences, Ural Federal University, Ekaterinburg 620083, Russia
  • 7Division of Natural and Environmental Sciences, The Open University of Japan, Chiba 261-8586, Japan

  • *y-togawa@21c.osakafu-u.ac.jp

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Issue

Vol. 111, Iss. 19 — 8 November 2013

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