Phase stabilities and spin transitions of Fe-3(S1-xPx) at high pressure   and its implications in meteorites

doi:10.2138/am-2016-5466

CORC > 北京大学 > 地球与空间科学学院

	Phase stabilities and spin transitions of Fe-3(S1-xPx) at high pressure and its implications in meteorites
	Gu, Tingting ; Fei, Yingwei ; Wu, Xiang ; Qin, Shan
刊名	AMERICAN MINERALOGIST
	2016
关键词	Iron sulfides iron phosphides high pressure meteorites spin transition IRON-SULFUR COMPOUND CARBONACEOUS CHONDRITES PLANETARY CORES SPECTROSCOPY PHOSPHORUS MANTLE FE3P
DOI	10.2138/am-2016-5466
英文摘要	Fe-S-P compounds have been observed in many meteorites and could be the important components in planetary cores. Here we investigated the phase stability of Fe-3(S,P) solid solutions and synthesized high-quality Fe3(Si_ 13x) high-pressure phases in the multi-anvil press. The physical properties of Fe-3(S0.5130.5) were further studied in the diamond-anvil cell by synchrotron X-ray diffraction and emission spectroscopy. The solubility of S in the Fe-3(S,P) solid solution increases with increasing pressure. The minimum pressure to synthesize the pure Fe3S and Fe-3(S0.13P0.87) is about 21 and 8 GPa, respectively. The observed discontinuity in unit-cell parameters at about 18 GPa is caused by the high-spin to low spin transition of iron, supported by X-ray emission spectroscopy data. The sulfur solubility in Fe-3(S,P) solid solutions could be an excellent pressure indicator if such solid solutions are found in nature.; CSC scholarship; NSF; National Natural Science Foundation of China [U1232204, 41502035]; NSAF [U1530402]; SCI(E); ARTICLE; gtt.pku@gmail.com; 1-2; 205-210; 101
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438930]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Gu, Tingting,Fei, Yingwei,Wu, Xiang,et al. Phase stabilities and spin transitions of Fe-3(S1-xPx) at high pressure and its implications in meteorites[J]. AMERICAN MINERALOGIST,2016.
APA	Gu, Tingting,Fei, Yingwei,Wu, Xiang,&Qin, Shan.(2016).Phase stabilities and spin transitions of Fe-3(S1-xPx) at high pressure and its implications in meteorites.AMERICAN MINERALOGIST.
MLA	Gu, Tingting,et al."Phase stabilities and spin transitions of Fe-3(S1-xPx) at high pressure and its implications in meteorites".AMERICAN MINERALOGIST (2016).