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	Growth of a single stripe and a stripe phase from individual holes in the low-doping regime of a strongly correlated electron system
	Yang, F ; Kou, SP
	2010-05-06 ; 2010-05-06
关键词	T-J MODEL MEAN-FIELD-THEORY INCOMMENSURATE MAGNETIC FLUCTUATIONS TRANSITION-METAL OXIDES LONG-RANGE INTERACTIONS DOPED ANTIFERROMAGNET WEAK FERROMAGNETISM SPIN FLUCTUATIONS HUBBARD-MODEL MU-SR Physics, Condensed Matter
中文摘要	In this paper, it is shown how a single stripe and a stripe phase grow from individual holes in the low-doping regime. In an effective low-energy description of the t-J model, i.e., the phase-string model, a hole doped into the spin-ordered phase will induce a dipolar distortion in the background [Kou and Weng, Phys. Rev. B 67, 115103 (2003)]. We analyze the hole-dipole configurations with lowest energy under a dipole-dipole interaction and show that these holes tend to arrange themselves into a regular polygon. Such a stable polygon configuration will turn into a stripe as the number of hole dipoles becomes thermodynamically large and eventually a uniform stripe state can be formed, which constitutes an energetically competitive phase at low doping. We also briefly discuss the effect of Zn impurities on individual hole dipoles and stripes.
语种	英语 ; 英语
出版者	AMERICAN PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/15389]
专题	清华大学
推荐引用方式 GB/T 7714	Yang, F,Kou, SP. Growth of a single stripe and a stripe phase from individual holes in the low-doping regime of a strongly correlated electron system[J],2010, 2010.
APA	Yang, F,&Kou, SP.(2010).Growth of a single stripe and a stripe phase from individual holes in the low-doping regime of a strongly correlated electron system..
MLA	Yang, F,et al."Growth of a single stripe and a stripe phase from individual holes in the low-doping regime of a strongly correlated electron system".(2010).

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