Common origin of the two types of magnetic fluctuations in iron chalcogenides
文献类型：期刊论文
| 作者 | Chi, SX ; Rodriguez-Rivera, JA ; Lynn, JW ; Zhang, CL ; Phelan, D ; Singh, DK ; Paul, R ; Dai, PC |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 84期号:21 |
| 关键词 | RAY ACTIVATION-ANALYSIS SUPERCONDUCTIVITY FETE1-XSEX NEUTRON |
| ISSN号 | 1098-0121 |
| 通讯作者 | Chi, SX: Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. |
| 中文摘要 | The Gaussian transition in the spin-1 Heisenberg chain with single-ion anisotropy is extremely difficult to treat, both analytically and numerically. We introduce an improved density-matrix renormalization group procedure with strict error control, which we use to access very large systems. By considering the bulk entropy, we determine the Gaussian transition point to four-digit accuracy, D-c/J = 0.968 45(8), resolving a long-standing debate in quantum magnetism. With this value, we obtain high-precision data for the critical behavior of quantities, including the ground-state energy, gap, and transverse string-order parameter, and for the critical exponent nu = 1.472(2). Applying our improved technique at J(z) = 0.5 highlights essential differences in critical behavior along the Gaussian transition line. |
| 收录类别 | SCI |
| 资助信息 | US Department of Commerce; NSF [DMR-0944772]; US DOE, Basic Energy Sciences (BES) through DOE [DE-FG02-05ER46202]; Chinese Academy of Science; Ministry of Science and Technology of China [2012CB821400] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34922]  |
| 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 | Chi, SX,Rodriguez-Rivera, JA,Lynn, JW,et al. Common origin of the two types of magnetic fluctuations in iron chalcogenides[J]. PHYSICAL REVIEW B,2011,84(21). |
| APA | Chi, SX.,Rodriguez-Rivera, JA.,Lynn, JW.,Zhang, CL.,Phelan, D.,...&Dai, PC.(2011).Common origin of the two types of magnetic fluctuations in iron chalcogenides.PHYSICAL REVIEW B,84(21). |
| MLA | Chi, SX,et al."Common origin of the two types of magnetic fluctuations in iron chalcogenides".PHYSICAL REVIEW B 84.21(2011). |
入库方式： OAI收割
来源：物理研究所
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