Control and local measurement of the spin chemical potential in a magnetic insulator
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2017-07-14 |
| Journal | Science |
| Authors | Chun-Hui Du, Toeno van der Sar, Tony X. Zhou, Pramey Upadhyaya, Francesco Casola |
| Institutions | University of California, Los Angeles, Harvard University |
| Citations | 244 |
Abstract
Section titled âAbstractâDiamonds to the rescue Keeping track of spin transport inside a spintronic device is challenging. Du et al. came up with a method involving diamond nitrogen-vacancy (NV) centers, which can act like tiny, very sensitive magnetometers. The authors placed diamond nanobeams containing the NV centers in close proximity to the sample. This allowed them to measure the spin chemical potential of spin wavesâso-called magnonsâwith nanometer resolution in the material yttrium iron garnet. Because NV centers are also sensitive to temperature, the method may be of use in spin caloritronics. Science , this issue p. 195