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本文首次观察到具有单斜I(P21/c)的DyP5O14晶体,并用光学显微镜,X射线结构分析和红外光谱等方法予以证明。DyP5O14在室温下存在着mmmF2/m类铁弹体的单斜I结构,其铁弹相变温度为159±3℃。单斜I的DyP5O14的晶胞参数,a=8.62?,b=8.84?,c=12.82?,β=90.28°。这一发现是LDyP5O14 crystal with monoclinic I (P21/c) phase was found and was verified by optical microscopy, X-ray structure analysis and infrared spectroscopy. DyP5O14 crystal with monoclinic I phase contains mmmF2/m ferrolastic domain. The temperature of ferrolastic phase transition is 159±3℃. The lattice parameters of DyP5O14 crystalwith monoclinie I Phase are a = 8.62 ?, b = 8.84?, c = 12.82?, β= 90.68°.
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中国物理学会期刊
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