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arXiv 1104.3272cond-mat.mtrl-sciphysics.chem-ph
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普鲁士蓝类似物Zn3 [Fe(CN)6]2的负热膨胀:X射线衍射和中子振动研究

Negative thermal expansion in the Prussian Blue analog Zn3[Fe(CN)6]2: X-ray diffraction and neutron vibrational studies

S Adak, L L Daemen, H Nakotte

摘要:

用X射线粉末衍射和中子非弹性散射研究了立方普鲁士蓝(PB)类似物Zn 3 [Fe(CN)6]2。在300和84 K收集的X射线数据显示负热膨胀(NTE)的行为,这种材料。发现NTE系数为-31.1 x 10-6 K-1。本文详细研究了Zn_3 [Fe(CN)_6]_2·xH_2 O的中子振动光谱。INS光谱显示出与Fe和Zn八面体的拉伸和变形模式对应的界限分明、分离良好的谱带,均低于800 cm-1。

英文摘要:

The cubic Prussian Blue (PB) analog, Zn3 [Fe(CN)6]2, has been studied by X-ray powder diffraction and inelastic neutron scattering (INS). X-ray data collected at 300 and 84 K revealed negative thermal expansion (NTE) behaviour for this material. The NTE coefficient was found to be -31.1 x 10-6 K-1. The neutron vibrational spectrum for Zn3[Fe(CN)6]2.xH2O, was studied in detail. The INS spectrum showed well-defined, well-separated bands corresponding to the stretching of and deformation modes of the Fe and Zn octahedra, all below 800 cm-1.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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