Superconductivity and phase stability of potassium-doped p-quinquephenyl

	Superconductivity and phase stability of potassium-doped p-quinquephenyl
	Ge Huang; Guo-Hua Zhong; Ren-Shu Wang; Jia-Xing Han; Hai-Qing Lin; Xiao-Jia Chen
刊名	Carbon
	2019
文献子类	期刊论文
英文摘要	The chain-like organic compounds with conjugated structure have the potential to become high temperature superconductors. Here, we show that p-quinquephenyl containing five phenyl rings connected in para position is superconducting when the compound is doped by potassium, with a critical temperature of 7.3K. The dc magnetic susceptibility measurements provide solid evidence for the presence of Meissner effect in potassium-doped p-quinquephenyl. The real part of the ac susceptibility shows exactly same transition temperature as that in dc magnetization, and the imaginary part of nearly zero value after transition implies the realization of zero-resistivity. The crystal structure prediction identifies the superconducting phase as K3p-quinquephenyl with P21 space-group, a layered structure. The occurrence of bipolarons revealed by Raman spectra guarantees potassium metal intercalated into p-quinquephenyl and suggests the important role of this elementary excitation played on superconductivity.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/13488]
专题	深圳先进技术研究院_集成所
推荐引用方式 GB/T 7714	Ge Huang,Guo-Hua Zhong,Ren-Shu Wang,et al. Superconductivity and phase stability of potassium-doped p-quinquephenyl[J]. Carbon,2019.
APA	Ge Huang,Guo-Hua Zhong,Ren-Shu Wang,Jia-Xing Han,Hai-Qing Lin,&Xiao-Jia Chen.(2019).Superconductivity and phase stability of potassium-doped p-quinquephenyl.Carbon.
MLA	Ge Huang,et al."Superconductivity and phase stability of potassium-doped p-quinquephenyl".Carbon (2019).