Structural Transition of Gd<suB>2</suB>O<suB>3</suB>:Eu Induced by High Pressure

Chin. Phys. Lett.

2007, Vol. 24

Issue (1): 158-160 DOI:

Original Articles

Structural Transition of Gd₂O₃:Eu Induced by High Pressure

CHEN Hai-Yong¹;HE Chun-Yuan¹;GAO Chun-Xiao¹;ZHANG Jia-Hua²;GAO Shi-Yong¹;LU Hong-Liang¹;NIE Yan-Guang¹;LI Dong-Mei¹;KAN Shi-Hai¹;ZOU Guang-Tian¹

¹State Key Laboratory of Super Hard Materials, Jilin University, Changchun 130012 ²Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033

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CHEN Hai-Yong, HE Chun-Yuan, GAO Chun-Xiao et al 2007 Chin. Phys. Lett. 24 158-160

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Abstract The structural transition of bulk and nano-size Gd₂O₃:Eu are studied by high pressure energy disperse x-ray diffraction (XRD) and high pressure photoluminescence. Our results show that in spite of different size of Gd₂O₃ particles, the cubic structure turns into a possible hexagonal one above 13.4GPa. When the pressure is released, the sample reverses to the monoclinic structure. No cubic structure presents in the released samples. That is to say, the compression and relaxation of the sample leads to the cubic Gd₂O₃:Eu then turns into the monoclinic one.

Keywords: 61.10.Nz 62.50.+p 64.70.Kb

Published: 01 January 2007

PACS:	61.10.Nz
	62.50.+p
	64.70.Kb

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2007/V24/I1/0158

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	CHEN Hai-Yong
	HE Chun-Yuan
	GAO Chun-Xiao
	ZHANG Jia-Hua
	GAO Shi-Yong
	LU Hong-Liang
	NIE Yan-Guang
	LI Dong-Mei
	KAN Shi-Hai
	ZOU Guang-Tian

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