Spin and Charge Order in the Doped Hubbard Model: Long-Wavelength Collective Modes
文献类型：期刊论文
| 作者 | Chang, CC ; Zhang, SW |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 104期号:11 |
| 关键词 | QUANTUM MONTE-CARLO FERMION GROUND-STATES OPTICAL LATTICE INSULATOR PHYSICS GASES |
| ISSN号 | 0031-9007 |
| 通讯作者 | Chang, CC (reprint author), Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA. |
| 中文摘要 | Determining the properties of the two-dimensional Hubbard model is an outstanding problem in physics. Applying recent advances in constrained path auxiliary-field quantum Monte Carlo techniques and simulating large rectangular supercells, we characterize the magnetic and charge properties in the ground state as a function of doping. At intermediate interaction strengths, an incommensurate spin density wave (SDW) state is found, with antiferromagnetic order and essentially homogeneous charge correlation. The wavelength of the collective mode decreases with doping, as does its magnitude. The SDW order vanishes beyond a critical doping. As the interaction is increased, the holes go from a wavelike (delocalized) to a particlelike (localized) state, and charge ordering develops which eventually evolves into stripelike states. |
| 收录类别 | SCI |
| 资助信息 | ARO [56693-PH]; NSF [DMR-0535592] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52866]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chang, CC,Zhang, SW. Spin and Charge Order in the Doped Hubbard Model: Long-Wavelength Collective Modes[J]. PHYSICAL REVIEW LETTERS,2010,104(11). |
| APA | Chang, CC,&Zhang, SW.(2010).Spin and Charge Order in the Doped Hubbard Model: Long-Wavelength Collective Modes.PHYSICAL REVIEW LETTERS,104(11). |
| MLA | Chang, CC,et al."Spin and Charge Order in the Doped Hubbard Model: Long-Wavelength Collective Modes".PHYSICAL REVIEW LETTERS 104.11(2010). |
入库方式： OAI收割
来源：物理研究所
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