Frustrated Magnetization in PrxLa-4xBaCuOsFe

W. A. Ortiz, H. Pardo, P. M. Araujo-Moreira, E. Quagliata, K. Prassides, R. Mariezcurrena, A. W. Mombru

研究成果: Chapter

抄録

The crystal structure of the system PrjMi-4BaCuOsFe has been recently reviewed. Tfie magnetic structure of samples with x = 0 aiidx = 1 is mainly due to effective local moments of iron and copper. In Pr-rich samples, Fe ions occupy two non-equivalent positions, making it substantially plausible that two or more magnetic subsets might coexist in the system. This contribution presents magnetization studies on five samples of the PrjMi. xBaCuOsFe system (x = 0. 0, 0. 2, 0. 5, 0. 7 and 1. 0). All samples exhibit a strong irreversible behavior between zero-fieldcooled and field-cooled procedures below a certain irreversibility temperature 7-4 Above Tk both branches are coincident and well described by a Curie-Weiss fitting. Decreasing the temperature below TJ, the zero-βeld-cooled response increases less than the field-cooled curve, indicating some degree of frustrated antiferromagnelic couplings.

本文言語English
ホスト出版物のタイトルMaterials Science Forum
編集者F.P. Missell
出版社Trans Tech Publications Ltd
ページ353-357
ページ数5
ISBN(印刷版)9780878498277
出版ステータスPublished - 1999 1月 1

出版物シリーズ

名前Materials Science Forum
302-303
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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