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DOI | 10.1126/science.aak9611 |
Control and local measurement of the spin chemical potential in a magnetic insulator | |
Du, Chunhui1; van der Sar, Toeno1; Zhou, Tony X.1,2; Upadhyaya, Pramey3; Casola, Francesco1,4; Zhang, Huiliang1,4; Onbasli, Mehmet C.5,6; Ross, Caroline A.5; Walsworth, Ronald L.1,4; Tserkovnyak, Yaroslav3; Yacoby, Amir1,2 | |
2017-07-14 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6347页码:195-198 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Turkey |
英文摘要 | The spin chemical potential characterizes the tendency of spins to diffuse. Probing this quantity could provide insight into materials such as magnetic insulators and spin liquids and aid optimization of spintronic devices. Here we introduce single-spin magnetometry as a generic platform for nonperturbative, nanoscale characterization of spin chemical potentials. We experimentally realize this platform using diamond nitrogen-vacancy centers and use it to investigate magnons in a magnetic insulator, finding that the magnon chemical potential can be controlled by driving the system's ferromagnetic resonance. We introduce a symmetry-based two-fluid theory describing the underlying magnon processes, measure the local thermomagnonic torque, and illustrate the detection sensitivity using electrically controlled spin injection. Our results pave the way for nanoscale control and imaging of spin transport in mesoscopic 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:000405391700044 |
WOS关键词 | ROOM-TEMPERATURE ; TRANSPORT ; NANOSTRUCTURES ; ACCUMULATION ; SPINTRONICS ; DIAMOND ; TORQUE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/196469 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Harvard Univ, Dept Phys, 17 Oxford St, Cambridge, MA 02138 USA; 2.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 3.Univ Calif Los Angeles, Dept Phys & Astron, 475 Portola Plaza, Los Angeles, CA 90095 USA; 4.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA; 5.MIT, Dept Mat Sci & Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 6.Koc Univ, Dept Elect & Elect Engn, TR-34450 Istanbul, Turkey |
推荐引用方式 GB/T 7714 | Du, Chunhui,van der Sar, Toeno,Zhou, Tony X.,et al. Control and local measurement of the spin chemical potential in a magnetic insulator[J]. SCIENCE,2017,357(6347):195-198. |
APA | Du, Chunhui.,van der Sar, Toeno.,Zhou, Tony X..,Upadhyaya, Pramey.,Casola, Francesco.,...&Yacoby, Amir.(2017).Control and local measurement of the spin chemical potential in a magnetic insulator.SCIENCE,357(6347),195-198. |
MLA | Du, Chunhui,et al."Control and local measurement of the spin chemical potential in a magnetic insulator".SCIENCE 357.6347(2017):195-198. |
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