Critical slowing-down and field-dependent paramagnetic fluctuations in the skyrmion host EuPtSi: and NMR studies

N. Higa, T. U. Ito, M. Yogi, T. Hattori, H. Sakai, S. Kambe, Z. Guguchia, W. Higemoto, M. Nakashima, Y. Homma, A. Nakamura, F. Honda, Y. Shimizu, D. Aoki, M. Kakihana, M. Hedo, T. Nakama, Y. Ōnuki, Y. Tokunaga

研究成果: Article査読

抄録

We report the results of muon spin relaxation () and NMR measurements carried out on the cubic chiral magnet EuPtSi. This compound exhibits a helimagnetic transition at  K, and hosts a unique skyrmion phase characterized by a short modulation period and strong anisotropy under magnetic fields. Our zero-field experiments revealed the development of critical slowing down of Eu spin fluctuations over a relatively wide critical region above . We also found from NMR that the spin fluctuations are strongly suppressed by magnetic field in the paramagnetic state above 20 K. These characteristic spin dynamics observed over a wide region of temperature and magnetic field suggest the presence of magnetic frustration in the spin system. Such frustration would underlie the mechanism stabilizing the short-period skyrmion lattice observed in this compound.

本文言語English
論文番号045145
ジャーナルPhysical Review B
104
4
DOI
出版ステータスPublished - 2021 7 15

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Critical slowing-down and field-dependent paramagnetic fluctuations in the skyrmion host EuPtSi: and NMR studies」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル