Low-energy effective theory for spin dynamics of fluctuating stripes
文献类型：期刊论文
| 作者 | Cheng, CH; Cheng, CH , Acad Sinica, Inst Phys, Taipei 115, Taiwan. |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2005 |
| 卷号 | 72期号:18页码:- |
| 关键词 | T-j Model Mean-field Theory Phase-separation Magnetic Dynamics Superconductivity Antiferromagnet La2cuo4 Holes |
| ISSN号 | 1098-0121 |
| 英文摘要 | We derive an effective Hamiltonian for spin dynamics of fluctuating smectic stripes from the t-J model in the weak coupling limit t > J. Besides the modulation of spin magnitude, the high energy hopping term would induce a low-energy antiferromagnetic interaction between two neighboring "blocks of spins." Based on the effective Hamiltonian, we applied the linear spin-wave theory and found that the spin-wave velocity is almost isotropic for La2-xSrxCuO4 unless the structural effect is considered. The intensity of the second harmonic mode is found to be about 10% to that of the fundamental mode. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000233603600080 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13730]  |
| 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 | Cheng, CH , Acad Sinica, Inst Phys, Taipei 115, Taiwan. |
| 推荐引用方式 GB/T 7714 | Cheng, CH,Cheng, CH , Acad Sinica, Inst Phys, Taipei 115, Taiwan.. Low-energy effective theory for spin dynamics of fluctuating stripes[J]. PHYSICAL REVIEW B,2005,72(18):-. |
| APA | Cheng, CH,&Cheng, CH , Acad Sinica, Inst Phys, Taipei 115, Taiwan..(2005).Low-energy effective theory for spin dynamics of fluctuating stripes.PHYSICAL REVIEW B,72(18),-. |
| MLA | Cheng, CH,et al."Low-energy effective theory for spin dynamics of fluctuating stripes".PHYSICAL REVIEW B 72.18(2005):-. |
入库方式： OAI收割
来源：理论物理研究所
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