Abstract
The generation of spin-polarised carriers in a non-magnetic material holds the key to realise highly efficient spintronic devices. Recently, it has been shown that the large spin-orbit coupling can generate spin-polarised currents in noble metals such as tungsten and platinum. Especially, if small samples of such metals are rotated on a plane disc in the presence of a perpendicular magnetic field, the orbital angular momentum is altered leading to a segregation of spin up and spin down electrons, i.e., a spin current in the samples. This is manifested via an induced magnetic moment on the metal. In this letter, magneto-optical Kerr effect (MOKE) is used to detect induced magnetic moments which allows remote measurements on metal samples rotating at 100 ~ 210 Hz. Our results confirm the mechanical generation of spin-polarised currents via optical detection of spin accumulation.
| Original language | English |
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| Pages (from-to) | 1-8 |
| Number of pages | 8 |
| Journal | Scientific Reports |
| Volume | 8 |
| Publication status | Published - 31 Jan 2018 |
