論文

査読有り
2017年4月

Switching of magnetic ground states across the UIr1-xRhxGe alloy system

PHYSICAL REVIEW B
  • Jiri Pospisil
  • Yoshinori Haga
  • Shinsaku Kambe
  • Yo Tokunaga
  • Naoyuki Tateiwa
  • Dai Aoki
  • Fuminori Honda
  • Ai Nakamura
  • Yoshiya Homma
  • Etsuji Yamamoto
  • Tomoo Yamamura
  • 全て表示

95
15
開始ページ
155138-1
終了ページ
155138-15
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.95.155138
出版者・発行元
AMER PHYSICAL SOC

We investigated the evolution ofmagnetism in the UIr1-xRhx Ge system by the systematic study of high-quality single crystals. Lattice parameters of both parent compounds are very similar, resulting in almost identical nearest interatomic uranium distances close to the Hill limit. We established the x-T phase diagram of the UIr1-xRhx Ge system and found a discontinuous antiferromagnetic/ferromagnetic boundary at x(crit) = 0.56, where a local minimum in ordering temperature andmaximum of the Sommerfeld coefficient gamma approximate to 175 mJ/molK(2) occurs in the UCoGe-URhGe-UIrGe system, signaling an increase in magnetic fluctuation. However, a quantum critical point is not realized because of the finite ordering temperature at x(crit). A magnon gap on the antiferromagnetic side abruptly suppresses magnetic fluctuations. We find a field-induced first order transition in the vicinity of the critical magnetic field along the b axis (H-b, crit) in the entire UIr1-xRhx Ge system, including the ferromagnetic region similar to UCo0.6Rh0.4Ge-URhGe.

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.95.155138
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000400062900002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevB.95.155138
  • ISSN : 2469-9950
  • eISSN : 2469-9969
  • Web of Science ID : WOS:000400062900002

エクスポート
BibTeX RIS