Convergence of energy-dependent incommensurate antiferromagnetic neutron scattering peaks to commensurate resonance in underdoped bilayer cuprates
文献类型：期刊论文
| 作者 | Yu, L ; Feng, S; Yuan, F; Su, ZB; Feng, S , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2002 |
| 卷号 | 66期号:6页码:- |
| 关键词 | High-temperature Superconductors T-c Superconductors Spin Excitation Magnetic Excitations Electronic-structure j Model yba2cu3o6+x Fluctuations Dynamics bi2sr2cacu2o8+delta |
| ISSN号 | 1098-0121 |
| 英文摘要 | The recently discovered coexistence of incommensurate antiferromagnetic neutron scattering peaks and commensurate resonance in underdoped YBa2Cu3O6+x is calling for an explanation. Within the t-J model, the doping and energy dependence of the spin dynamics of the underdoped bilayer cuprates in the normal state is studied based on the fermion-spin theory by considering the bilayer interactions. Incommensurate peaks are found at [(1+/-delta)pi,pi] and [pi,(1+/-delta)pi] at low energies, with delta initially increasing with doping at low dopings and then saturating at higher dopings. These incommensurate peaks are suppressed, and the parameter delta is reduced with increasing energy. Eventually it converges to the [pi,pi] resonance peak. Thus the recently observed coexistence is interpreted in terms of bilayer interactions. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000177911700092 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13472]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Feng, S , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yu, L,Feng, S,Yuan, F,et al. Convergence of energy-dependent incommensurate antiferromagnetic neutron scattering peaks to commensurate resonance in underdoped bilayer cuprates[J]. PHYSICAL REVIEW B,2002,66(6):-. |
| APA | Yu, L,Feng, S,Yuan, F,Su, ZB,&Feng, S , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China..(2002).Convergence of energy-dependent incommensurate antiferromagnetic neutron scattering peaks to commensurate resonance in underdoped bilayer cuprates.PHYSICAL REVIEW B,66(6),-. |
| MLA | Yu, L,et al."Convergence of energy-dependent incommensurate antiferromagnetic neutron scattering peaks to commensurate resonance in underdoped bilayer cuprates".PHYSICAL REVIEW B 66.6(2002):-. |
入库方式： OAI收割
来源：理论物理研究所
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