Powder synthesis and crystal growth of Y2V2O7 under high pressure and its physical properties

被引：14

作者：

Haghighirad, A. A. ^{[1
]}

Gross, C. ^{[1
]}

Assmus, W. ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Phys, D-60438 Frankfurt, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 2008年 / 310卷 / 7-9期

关键词：

crystal structure; X-ray diffraction; single crystal growth; oxides;

D O I：

10.1016/j.jcrysgro.2007.10.069

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Y2V2O7 with pyrochlore structure has been synthesized under a high pressure of 5GPa at 1200 degrees C. The crystal structure has been determined by Rietveld analysis of the X-ray diffraction data. The structure is cubic with a = 10.0143(8) angstrom and can be described by the space group F d -3 m (no. 227). Scanning electron microscopy data suggest the efficiency of the grain growth method for single crystal growth Of Y2V2O7 under high pressure and high temperature conditions. Magnetic susceptibility data conforming to the Curie-Weiss law in the range 150-300 K with an effective moment p(eff) of 1.76 mu(B)/V4+ ion and theta = + 68 K indicates the predominance of ferromagnetic interactions. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2277 / 2283

页数：7

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