Common origin of the two types of magnetic fluctuations in iron chalcogenides | |
Chi, SX ; Rodriguez-Rivera, JA ; Lynn, JW ; Zhang, CL ; Phelan, D ; Singh, DK ; Paul, R ; Dai, PC | |
刊名 | PHYSICAL REVIEW B
![]() |
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 |
内容类型 | 期刊论文 |
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). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论