Growth and characterization of high-quality SrFeOx single crystals

被引：20

作者：

Maljuk, A ^{[1
]}

Strempfer, J ^{[1
]}

Ulrich, C ^{[1
]}

Lebon, A ^{[1
]}

Lin, CT ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 2003年 / 257卷 / 3-4期

关键词：

floating zone technique; oxides;

D O I：

10.1016/S0022-0248(03)01474-X

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We report the growth of high-quality SrFeOx single crystals with volumes of up to 0.25 cm(3) by the floating zone method. After post-growth annealing under 700 bar oxygen pressure, the crystals have an oxygen content corresponded to SrFeO2.96. Neutron scattering and synchrotron diffraction experiments confirm the high crystal quality of the samples. Two antiferromagnetic transitions were observed for an annealed SrFeO2.96 crystal, with T-NI = 75 K and T-N2 = 134 K. We also establish that the SrFeOx compound melts congruently in air and in oxygen flow at 1435degreesC and 1460degreesC, respectively. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：427 / 431

页数：5

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