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题名: Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates
作者: Yuan, F ;  Feng, SP ;  Su, ZB ;  Yu, L
刊名: PHYSICAL REVIEW B
出版日期: 2001
卷号: 64, 期号:22, 页码:-
关键词: COPPER-OXIDE MATERIALS ;  MEAN-FIELD-THEORY ;  SPIN FLUCTUATIONS ;  TRANSITION TEMPERATURE ;  MAGNETIC FLUCTUATIONS ;  NEUTRON-SCATTERING ;  PHASE-DIAGRAM ;  HUBBARD-MODEL ;  NORMAL-STATE ;  LA2-XSRXCUO4
学科分类: Physics
通讯作者: Yuan, F , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
部门归属: Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Acad Sinica, Natl Lab Superconduct, Beijing 100080, Peoples R China; Abdus Salam Int Ctr Theoret Phys, I-34014 Trieste, Italy
英文摘要: 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].
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000172733300079
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13635
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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):-.
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