Spin–orbit torques in heavy metal/ferrimagnetic insulator bilayers near compensation
| العنوان: | Spin–orbit torques in heavy metal/ferrimagnetic insulator bilayers near compensation |
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| المؤلفون: | Ning Wang, Qi Zeng, Shuoqi Li, Tao Lin, Zhixiang Ye, Ji Shi, Ziqi Fan, Jing Liu, Peigang Han, Hongnan Zheng, Mingxia Qiu, Shunpu Li, Lin Liu, Wei Jia, Hongyu An, Lei Ma, Zehan Chen, Zhiren Chen |
| المصدر: | Applied Physics Letters. 119:052401 |
| بيانات النشر: | AIP Publishing, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Magnetization, Materials science, Physics and Astronomy (miscellaneous), Condensed matter physics, Spintronics, Ferrimagnetism, Bilayer, Insulator (electricity), Sputter deposition, Spin (physics), Compensation (engineering) |
| الوصف: | Spin–orbit torques (SOTs) in compensated ferrimagnets (FMs) have been widely studied due to their abundant advantages for the application in spintronic devices. Recently, the SOT in FM metals near compensation tuned by composition and temperature has been reported. However, the SOT in FM insulators (FMIs) near compensation still remains elusive. In this work, we report the study of the SOT in FMI near compensation tuned by the temperature. First, Pt/Gd3Fe5O12 (GdIG) bilayer films with high crystallinity and perpendicular magnetic anisotropy were fabricated by magnetron sputtering. Then, the SOT was measured by varying the temperature. It is found that the SOT generation is drastically enhanced close to the compensation temperature, which is verified to be caused by the decrease in the net magnetization. The effective spin Hall angle in Pt/GdIG bilayer films is estimated to be ∼0.0073, which is almost independent of the temperature. Our study provides a potential approach in emerging FMIs for spintronic devices with low-energy consumption. |
| تدمد: | 1077-3118 0003-6951 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a7cb152b840d120b7f096634b2b21a90 https://doi.org/10.1063/5.0057741 |
| رقم الأكسشن: | edsair.doi...........a7cb152b840d120b7f096634b2b21a90 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Scitation. | تدمد: | 10773118 00036951 |
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