Angle-resolved photoemission study of Sr2RuO4; An extended van-Hove singularity in non-cuprate superconductor

	Angle-resolved photoemission study of Sr2RuO4; An extended van-Hove singularity in non-cuprate superconductor
	Takahashi, T ; Yokoya, T ; Chainani, A ; Ding, H ; Campuzano, JC ; Kasai, M ; Tokura, Y
刊名	PHYSICA C
	1997
卷号	282 页码:218
ISSN号	0921-4534
通讯作者	Takahashi, T (reprint author), TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 98077,JAPAN.
中文摘要	We have performed high-resolution angle-resolved photoemission spectroscopy of a non-cuprate layered superconductor Sr2RuO4 to study the electronic structure near the Fermi level (E-F). The result shows an extended van Hove singularity (vHs) along the Ru-O bonding direction just like the cuprate, regardless of the character of the electronic states at E-F This suggests that the extended vHs is a general electronic structure of a two dimensional correlated d-electron metal. We also have found that the observed Fermi surface topology (one electron-like Fermi surface sheet centered at Gamma point and two hole-like ones centered at X point) is qualitatively different from the calculated Fermi surface topology (two electron-like Fermi sheets centered at Gamma point and one hole-like one centered at X point) in the consequence of the existence of the vHs.
收录类别	SCI
语种	英语
公开日期	2014-02-20
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57983]
专题	物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文
推荐引用方式 GB/T 7714	Takahashi, T,Yokoya, T,Chainani, A,et al. Angle-resolved photoemission study of Sr2RuO4; An extended van-Hove singularity in non-cuprate superconductor[J]. PHYSICA C,1997,282:218.
APA	Takahashi, T.,Yokoya, T.,Chainani, A.,Ding, H.,Campuzano, JC.,...&Tokura, Y.(1997).Angle-resolved photoemission study of Sr2RuO4; An extended van-Hove singularity in non-cuprate superconductor.PHYSICA C,282,218.
MLA	Takahashi, T,et al."Angle-resolved photoemission study of Sr2RuO4; An extended van-Hove singularity in non-cuprate superconductor".PHYSICA C 282(1997):218.