Quantum magnetic phase transition in square-octagon lattice

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	Quantum magnetic phase transition in square-octagon lattice
	Bao, A ; Tao, HS ; Liu, HD ; Zhang, XZ ; Liu, WM
刊名	SCIENTIFIC REPORTS
	2014
卷号	4
ISSN号	2045-2322
通讯作者	Liu, WM (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Quantum magnetic phase transition in square-octagon lattice was investigated by cellular dynamical mean field theory combining with continuous time quantum Monte Carlo algorithm. Based on the systematic calculation on the density of states, the double occupancy and the Fermi surface evolution of square-octagon lattice, we presented the phase diagrams of this splendid many particle system. The competition between the temperature and the on-site repulsive interaction in the isotropic square-octagon lattice has shown that both antiferromagnetic and paramagnetic order can be found not only in the metal phase, but also in the insulating phase. Antiferromagnetic metal phase disappeared in the phase diagram that consists of the anisotropic parameter lambda and the on-site repulsive interaction U while the other phases still can be detected at T = 0.17. The results found in this work may contribute to understand well the properties of some consuming systems that have square-octagon structure, quasi square-octagon structure, such as ZnO.
资助信息	NKBRSFC [2011CB921502, 2012CB821305]; NSFC [61227902, 61378017, 11174169, 11234007]; SPRPCAS [XDB01020300]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59689]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Bao, A,Tao, HS,Liu, HD,et al. Quantum magnetic phase transition in square-octagon lattice[J]. SCIENTIFIC REPORTS,2014,4.
APA	Bao, A,Tao, HS,Liu, HD,Zhang, XZ,&Liu, WM.(2014).Quantum magnetic phase transition in square-octagon lattice.SCIENTIFIC REPORTS,4.
MLA	Bao, A,et al."Quantum magnetic phase transition in square-octagon lattice".SCIENTIFIC REPORTS 4(2014).