Spin current transmission in polycrystalline NiO films
| Autor: | Kent Oda, Tetsuya Ikebuchi, Teruo Ono, Takahiro Moriyama, Hayato Mizuno |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Spin pumping
Materials science Condensed matter physics Spintronics Non-blocking I/O General Engineering General Physics and Astronomy Conductance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 0103 physical sciences Spin diffusion Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Crystallite 010306 general physics 0210 nano-technology Spin-½ |
| Zdroj: | Applied Physics Express. 11:073003 |
| ISSN: | 1882-0786 1882-0778 |
| DOI: | 10.7567/apex.11.073003 |
| Popis: | Spin current transmission in antiferromagnetic materials is one of the important and intriguing problems in the recently emerged field of antiferromagnetic spintronics. We investigate the spin current transmission in polycrystalline NiO by referencing the effective Gilbert damping constant in NiO/FeNi bilayers. The results are discussed with reference to the spin pumping theory assuming that the NiO layer is spin diffusive. We extracted the spin diffusion length of ~22 nm for the NiO and the mixing conductance of ~6 nm−2 at the NiO/FeNi interface. The obtained spin diffusion length and the mixing conductance are within reasonable ranges compared with previous reports. |
| Databáze: | OpenAIRE |
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