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DOI | 10.1126/science.aar4061 |
Electrical generation and detection of spin waves in a quantum Hall ferromagnet | |
Wei, Di S.1; van der Sar, Toeno2,4; Lee, Seung Hwan2; Watanabe, Kenji3; Taniguchi, Takashi3; Halperin, Bertrand I.2; Yacoby, Amir1,2 | |
2018-10-12 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 362期号:6411页码:229-232 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Japan; Netherlands |
英文摘要 | Spin waves are collective excitations of magnetic systems. An attractive setting for studying long-lived spin-wave physics is the quantum Hall (QH) ferromagnet, which forms spontaneously in clean two-dimensional electron systems at low temperature and in a perpendicular magnetic field. We used out-of-equilibrium occupation of QH edge channels in graphene to excite and detect spin waves in magnetically ordered QH states. Our experiments provide direct evidence for long-distance spin-wave propagation through different ferromagnetic phases in the N = 0 Landau level, as well as across the insulating canted antiferromagnetic phase. Our results will enable experimental investigation of the fundamental magnetic properties of these exotic two-dimensional electron systems. |
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:000447337200056 |
WOS关键词 | SKYRMIONS ; TRANSPORT ; GRAPHENE ; INTEGER |
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/199825 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 2.Harvard Univ, Dept Phys, Cambridge, MA 02138 USA; 3.Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan; 4.Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands |
推荐引用方式 GB/T 7714 | Wei, Di S.,van der Sar, Toeno,Lee, Seung Hwan,et al. Electrical generation and detection of spin waves in a quantum Hall ferromagnet[J]. SCIENCE,2018,362(6411):229-232. |
APA | Wei, Di S..,van der Sar, Toeno.,Lee, Seung Hwan.,Watanabe, Kenji.,Taniguchi, Takashi.,...&Yacoby, Amir.(2018).Electrical generation and detection of spin waves in a quantum Hall ferromagnet.SCIENCE,362(6411),229-232. |
MLA | Wei, Di S.,et al."Electrical generation and detection of spin waves in a quantum Hall ferromagnet".SCIENCE 362.6411(2018):229-232. |
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