Lifetime and mean free path of spin waves in ultrathin cobalt films
| العنوان: | Lifetime and mean free path of spin waves in ultrathin cobalt films |
|---|---|
| المؤلفون: | E. Michel, Claus M. Schneider, Antonio Costa, D. L. R. Santos, Harald Ibach |
| المصدر: | Physical Review B. 94 |
| بيانات النشر: | American Physical Society (APS), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Range (particle radiation), Materials science, Condensed matter physics, Mean free path, Magnon, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Condensed Matter::Materials Science, Wavelength, chemistry, Spin wave, 0103 physical sciences, Miniaturization, Condensed Matter::Strongly Correlated Electrons, Nanometre, 010306 general physics, 0210 nano-technology, Cobalt |
| الوصف: | Miniaturization of magnon-based devices into the nanometer range would require the utilization of exchange-dominated spin waves of nanometer wavelength. In experiment and theory we show that the intrinsic lifetime and mean free path of the homogeneous acoustic spin wave in ultrathin cobalt films is sufficiently long for such applications provided that the films are atomically flat. The presence of surface steps, however, shortens lifetime and mean free path. The experimental data are consistent with a model which assumes that steps act as perfect sinks for spin waves. |
| تدمد: | 2469-9969 2469-9950 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::5b0b27093cf2b2388a508a2b1053f41b https://doi.org/10.1103/physrevb.94.014420 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........5b0b27093cf2b2388a508a2b1053f41b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699969 24699950 |
|---|