Electronic structure and orientational phase transition of K3C60

	Electronic structure and orientational phase transition of K3C60
	Li, HN; Xu, YB; Bao, SN; Li, HY; Qian, HJ; Liu, FQ; Ibrahim, K; Qian HJ(钱海杰); Liu FQ(刘凤琴); Kui RX(奎热西)
刊名	SOLID STATE COMMUNICATIONS
	2002
卷号	121 期号:5 页码:#REF!
关键词	K3C60 single crystal thin films electronic structured orientational phase transition
通讯作者	Li, HN (reprint author), Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China.
英文摘要	Synchrotron radiation angle resolved photoemission spectra (PES) were measured on the (111) surface of K3C60 single crystal film at three different temperatures, namely. 190. 220 and 300 K. Dispersions for the subbands of the conduction band along the [111] direction could be observed clearly at 190 K. and the band structure was nearly the same as that at 150 K corresponding to the one-dimensional-disordered orientational structure (1DDS) of K3C60, Most subpeaks smeared and the dispersions could no longer be observed when the sample temperature was raised to 220 K. The PES at room temperature differed remarkably from that at lower temperatures. The change of spectra with temperature is consistent with an orientational phase transition at 200 K. and can be explained by the theory of the fcc anti ferromagnetic Ising model, assuming that the 1DD structure at lower temperatures converts to be a mixture of bi-directional structure domains and disordered molecules at higher temperatures. (C) 2002 Elsevier Science Ltd. All rights reserved.
学科主题	Physics
类目[WOS]	Physics, Condensed Matter
收录类别	SCI
WOS记录号	WOS:000174443600006
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227236]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Li, HN,Xu, YB,Bao, SN,et al. Electronic structure and orientational phase transition of K3C60[J]. SOLID STATE COMMUNICATIONS,2002,121(5):#REF!.
APA	Li, HN.,Xu, YB.,Bao, SN.,Li, HY.,Qian, HJ.,...&奎热西.(2002).Electronic structure and orientational phase transition of K3C60.SOLID STATE COMMUNICATIONS,121(5),#REF!.
MLA	Li, HN,et al."Electronic structure and orientational phase transition of K3C60".SOLID STATE COMMUNICATIONS 121.5(2002):#REF!.