Solid C<suB>60</suB>: Pressure Induced Phase Transitions

Chin. Phys. Lett.

1993, Vol. 10

Issue (3): 159-162 DOI:

Original Articles

Solid C₆₀: Pressure Induced Phase Transitions

WANG Jifang;WANG Lijun;CHEN Liangchen;CHEN Hong;WANG Ruju;ZHANG Zhiting;CHE Rongzheng;ZHOU Lei

Institute of Physics, Academia Sinica, Beijing 100080

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WANG Jifang, WANG Lijun, CHEN Liangchen et al 1993 Chin. Phys. Lett. 10 159-162

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Abstract Based on in situ high pressure x-ray diffraction with diamond anvil cell by using synchrotron radiation and pressure-quench x-ray measurement, phase transition of C₆₀ under high pressured is studied. The maximum pressure used is 30GPa in quasi-hydrostatic case but 44GPa in nonhydrostatic case. At ambient pressure, C₆₀ crystal is a fcc phase with lattice parameter a=14.2086Å. It transforms from fcc to a lower symmetry phase at pressure of 13.7GPa, and then transforms to an amorphous state under pressure up to 25-30 GPa. This amorphous state is metastable at normal condition. Finally, the experimental results are discussed.

Keywords: 62.50.+p 64.70.-p

Published: 01 March 1993

PACS:	62.50.+p
	64.70.-p	(Specific phase transitions)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1993/V10/I3/0159

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	WANG Jifang
	WANG Lijun
	CHEN Liangchen
	CHEN Hong
	WANG Ruju
	ZHANG Zhiting
	CHE Rongzheng
	ZHOU Lei

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