Neutron diffraction studies of temperature induced phase transitions in Rb_2KFeF_6 el-pasolite

机译：Rb_2KFeF_6锂辉石中温度诱导相变的中子衍射研究

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A neutron diffraction study of temperature induced phase transition in Rb_2KFeF_6 elpasolite has been performed. At room temperature the structure is cubic with space group Fm3m. At T = 170 K a structural phase transition takes place. Space group and atom coordinates in this phase has been defined. The crystal structure is good refined by orthorhombic space group Pmnn. Possible models are discussed.

机译：进行了Rb_2KFeF_6钙钛矿中温度诱导相变的中子衍射研究。在室温下，结构为立方，空间群为Fm3m。在T = 170 K时发生结构相变。已经定义了该阶段的空间群和原子坐标。晶体结构被正交晶空间群Pmnn细化。讨论了可能的模型。

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来源
《Zeitschrift fur Kristallographie Supplement Issue no.23 2006: International Journal for Structural, Physical, and Chemical Aspects of Crystalline Materials》|2004年|P.467-472|共6页
会议地点 Prague(CS)
作者
S. G. Vasilovsky; V. V. Sikolenko; A. I. Beskrovny; A. V. Belushkin; I. N. Flerov; A. Tressaud; A. M. Balagurov;
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作者单位

Joint Institute for Nuclear Research, Dubna, Russia;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
neutron diffraction; elpasolites; Rietveld analysis;

机译：中子衍射；锂辉石； Rietveld分析;

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Neutron diffraction studies of temperature induced phase transitions in Rb_2KFeF_6 el-pasolite

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