Micromagnetic Simulations of Emission Power in Spin Torque Oscillator: Influence of Diameter and Interlayer Exchange Coupling
| العنوان: | Micromagnetic Simulations of Emission Power in Spin Torque Oscillator: Influence of Diameter and Interlayer Exchange Coupling |
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| المؤلفون: | Atsushi Furuya, Hitoshi Kubota, Jun Fujisaki, Koichi Shimizu, Tadashi Ataka, Tomohiro Tanaka, Yuji Uehara, Chikako Yoshida, Hirotaka Oshima, Hiroshi Imamura |
| المصدر: | IEEE Transactions on Magnetics. 54:1-5 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 010302 applied physics, Coupling constant, Coupling, Magnetization dynamics, Materials science, Condensed matter physics, Oscillation, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Electronic, Optical and Magnetic Materials, Magnetization, 0103 physical sciences, Perpendicular, Electrical and Electronic Engineering, 0210 nano-technology, Current density, Micromagnetics |
| الوصف: | Micromagnetic simulations for spin torque oscillators (STOs) which have a perpendicular magnetized free layer (FL) and an in-plane magnetized reference layer (RL) in various diameters are presented. Our simulations show that an incoherent magnetization oscillation occurs at more than or equal to 350 nm in the diameter. Such incoherent magnetization oscillation causes the emission power of the STOs to be degraded. It is also indicated that not only is the magnetization dynamics of the FL related to the emission power but also the magnetization dynamics of the RL and the pinned layer are related to the emission power. In addition, it is revealed that changing the interlayer exchange coupling constant enhances the emission power. |
| تدمد: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2018.2849555 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::90e508a0e18ffe9c10007055ff47970b https://doi.org/10.1109/tmag.2018.2849555 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........90e508a0e18ffe9c10007055ff47970b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19410069 00189464 |
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| DOI: | 10.1109/tmag.2018.2849555 |