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DOI | 10.1126/science.aat4387 |
Spin transport in a Mott insulator of ultracold fermions | |
Nichols, Matthew A.1,2,3; Cheuk, Lawrence W.2,4; Okan, Melih1,2,3; Hartke, Thomas R.1,2,3; Mendez, Enrique1,2,3; Senthil, T.1; Khatami, Ehsan5; Zhang, Hao1,2,3; Zwierlein, Martin W.1,2,3 | |
2019-01-25 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6425页码:383-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Strongly correlated materials are expected to feature unconventional transport properties, such that charge, spin, and heat conduction are potentially independent probes of the dynamics. In contrast to charge transport, the measurement of spin transport in such materials is highly challenging. We observed spin conduction and diffusion in a system of ultracold fermionic atoms that realizes the half-filled Fermi-Hubbard model. For strong interactions, spin diffusion is driven by super-exchange and doublon-hole-assisted tunneling, and strongly violates the quantum limit of charge diffusion. The technique developed in this work can be extended to finite doping, which can shed light on the complex interplay between spin and charge in the Hubbard model. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456871800034 |
WOS关键词 | DYNAMICS ; DIFFUSION ; GAS ; SUPERCONDUCTOR ; TRANSITION ; PHYSICS ; CHARGE ; MODEL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200617 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.MIT, Dept Phys, Cambridge, MA 02139 USA; 2.MIT Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 USA; 3.MIT, Res Lab Elect, Cambridge, MA 02139 USA; 4.Harvard Univ, Dept Phys, Cambridge, MA 02138 USA; 5.San Jose State Univ, Dept Phys & Astron, San Jose, CA 95192 USA |
推荐引用方式 GB/T 7714 | Nichols, Matthew A.,Cheuk, Lawrence W.,Okan, Melih,et al. Spin transport in a Mott insulator of ultracold fermions[J]. SCIENCE,2019,363(6425):383-+. |
APA | Nichols, Matthew A..,Cheuk, Lawrence W..,Okan, Melih.,Hartke, Thomas R..,Mendez, Enrique.,...&Zwierlein, Martin W..(2019).Spin transport in a Mott insulator of ultracold fermions.SCIENCE,363(6425),383-+. |
MLA | Nichols, Matthew A.,et al."Spin transport in a Mott insulator of ultracold fermions".SCIENCE 363.6425(2019):383-+. |
条目包含的文件 | 条目无相关文件。 |
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