The effect of Ru-site dopants on the magnetic properties of CaRuO3

被引：72

作者：

He, T ^{[1
]}

Cava, RJ

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08540 USA

[2] Princeton Univ, Princeton Mat Inst, Princeton, NJ 08540 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 36期

关键词：

D O I：

10.1088/0953-8984/13/36/309

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effects of Ru-site metal dopants on the low-temperature magnetization of CaRuO3 are reported. Dopants of two types are tested: those with closed d shells in their expected oxidation state (Al3+, Zn2+, Ti4+, V5+ and Pt2+), and those with unpaired d electrons (Mn4+, Fe3+, Co2+, Ni2+ and Cu2+) in their expected oxidation state. The results are consistent with the recent proposal that CaRuO3 is not a classical antiferromagnet, but rather is poised at a critical point between ferromagnetic and paramagnetic ground states. Ti, Fe, Mn and Ni doping result in ferromagnetic behaviour.

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页码：8347 / 8361

页数：15

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