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Doping and temperature dependence of incommensurate antiferromagnetism in underdoped lanthanum cuprates
Yuan, F; Feng, SP; Su, ZB; Yu, L; Yuan, F , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
2001
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号64期号:22页码:-
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].
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
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
学科领域Physics
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收录类别SCI
WOS记录号WOS:000172733300079
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13635
专题理论物理所1978-2010年知识产出
通讯作者Yuan, F , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
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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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