Magnetic properties of Co2-xCux(OH) PO4 (x=0, 1 and 2)

被引：10

作者：

de Pedro, I.

Jubera, V.

Rojo, J. M.

Lezama, L.

Sanchez Marcos, J.

Rodriguez Fernandez, J.

Mesa, J. L.

Rojo, T.

Arriortua, M. I.

机构：

[1] Univ Basque Country, Fac Ciencias, Dept Quim Inorgan, E-48080 Bilbao, Spain

[2] ICMCB Grp V, F-33608 Pessac, France

[3] Univ Cantabria, Fac Ciencias, CITIMAC, E-39005 Santander, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

hydrothermal synthesis; phosphates; solid solution; antiferromagnetic; spin-glass;

D O I：

10.1016/j.jmmm.2003.11.331

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The isostructural Co2-xCux(OH) PO4 (x = 0, 1 and 2) phases have been prepared from hydrothermal synthesis and characterized from powder X-ray diffraction. The structure consists of a three-dimensional framework in which M(1) O-5-trigonal bipyramid dimers and M(2) O-6-octahedral chains are simultaneously present. Magnetization measurements of Co-2(OH)(PO4) show the existence of two maxima attributed to a three-dimensional antiferromagnetic ordering at 70 K and a spin-glass-like state at 12 K. When Co2+ is substituted by Cu2+ ions, the spin-glass behavior disappears and the magnetic order is decreased. (C) 2004 Elsevier B. V. All rights reserved.

引用

页码：E665 / E666

页数：2

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