Magnetic and electrical properties of single crystalline Sr3-xCaxRu2O7

被引：0

作者：

Iwata, K. ^{[1
]}

Yoshida, Y. ^{[2
]}

Kosaka, M. ^{[1
]}

Katano, S. ^{[1
]}

机构：

[1] Saitama Univ, Fac Sci, Saitama City, Saitama 3388570, Japan

[2] AIST, Nanoelect Res Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 5-9期

关键词：

ruthenate; substitution; antiferromagnetism; structural transition;

D O I：

10.1016/j.physb.2007.10.209

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have successfully grown single crystalline Sr3-xCaxRu2O7 with the range of 2.0 <= x <= 3.0 using the floating-zone method. All compounds show orthorhombic symmetry in this substitution range, but the difference between lattice constants a and b decreases with increasing Sr concentration and becomes almost zero at x = 2.0. Characteristic temperatures, which correspond to antiferromagnetic ordering and structural transition, decrease with increasing Sr concentration. The value of the magnetic susceptibility below 30K increases with increasing Sr concentration. The temperature dependence of the electrical resistivity revealed that Sr substitution significantly suppresses the highly anisotropic electric structure of Ca3Ru2O7. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1596 / 1597

页数：2

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