Spin Glass State in Zirconolites LnFeTi2O7 (Ln=Sm,Gd,Dy)

摘要：

　　Magnetization, specific-heat, γ-reso nance, x-ray investigations have been used to charac terize the magnetic state of the LnFeTi2O7 (Ln =Sm,Gd, Dy).In this materials with dominant antiferro magnetic interaction we observe a spin-glass transition from paramagnetic state of the below the freezing tem peratures Tf =7 K in SmFeTi2O7 , Tf =3 K in GdFe Ti2 O7, Tf =6 K in DyFeTi2 O7.We show that the mag netization of LnFeTi2 07 depends on the magnetic histo ry of the samples with crystallographic sites disorder of the magnetic cations.

关键词： zirconolite LnFeTi2O7 spin glass magnetic state

作者: T.Drokina G.Petrakovskii

作者单位: L.V. Kirensky Institute of Physics,Siberian Branch of Russian Academy of Science,Akademgorodok,50 / 38,Krasnoyarsk,660036

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 143-146

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）