Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates

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	Yuan, F; Feng, SP; Su, ZB; Yu, L; Yuan, F , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
	Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates
Source Publication	PHYSICAL REVIEW B
Keyword	Copper-oxide Materials Mean-field-theory Spin Fluctuations Transition Temperature Magnetic Fluctuations Neutron-scattering Phase-diagram Hubbard-model Normal-state La2-xsrxcuo4
Abstract	The doping, temperature, and energy dependence of the dynamical spin structure factors of the underdoped lanthanum cuprates in the normal state are studied within the t-J model using the fermion-spin transformation technique. Incommensurate peaks are found at [(1 +/- delta) pi, pi], [pi, (1 +/- delta) pi] at relatively low temperatures, with delta linearly increasing with doping at the beginning and then saturating at higher dopings, These peaks broaden and weaken in amplitude with temperature and energy, in good agreement with experiments. The theory also predicts a rotation of these peaks by pi /4 at even higher temperatures, being shifted to [(1 +/- delta/ root2)pi, (1 +/- delta/ root2)delta].
	2001
ISSN	1098-0121
Volume	64 Issue:22 Pages:-
Subject Area	Physics
Indexed By	SCI
Citation statistics	Cited Times:12[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/13635
Collection	SCI期刊论文
Corresponding Author	Yuan, F , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
Recommended Citation GB/T 7714	Yuan, F,Feng, SP,Su, ZB,et al. Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates[J]. PHYSICAL REVIEW B,2001,64(22):-.
APA	Yuan, F,Feng, SP,Su, ZB,Yu, L,&Yuan, F , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China..(2001).Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates.PHYSICAL REVIEW B,64(22),-.
MLA	Yuan, F,et al."Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates".PHYSICAL REVIEW B 64.22(2001):-.

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