Synthesis of a new magnetic Y2Mn2/3Re4/3O7 with pyrochlore-like structure

被引：5

作者：

Bazuev, GV ^{[1
]}

Chupakhina, TI ^{[1
]}

Krasil'nikov, VN ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solid State Chem, Ural Div, Ekaterinburg 620219, Russia

来源：

JETP LETTERS | 2001年 / 74卷 / 07期

关键词：

D O I：

10.1134/1.1427131

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A complex oxide of the Y2Mn2/3Re4/3O7 composition with pyrochlore-like structure and parameters of hexagonal unit cell a = 14.91(1) Angstrom, c = 17.53(1) Angstrom was synthesized. The magnetic susceptibility and magnetization measurements showed that below 190 K this oxide possesses spontaneous magnetic moment. In the paramegnetic region, the magnetic susceptibility obeys the Curie-Weiss law chi = C/(T - Theta), with C = 2.07 cm(3) K mol(-1) and Theta = -160 K, and the effective magnetic moment corresponding to the cationic combination Mn2+-Re5+. The data obtained allow one to assume that the compound has a noncollinear antiferromagnetic structure. (C) 2001 MAIK "Nauka /Interperiodica".

引用

页码：401 / 403

页数：3

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