تقرير
Large nonvolatile control of magnetic anisotropy in CoPt by a ferroelectric ZnO-based tunneling barrier
| العنوان: | Large nonvolatile control of magnetic anisotropy in CoPt by a ferroelectric ZnO-based tunneling barrier |
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| المؤلفون: | Al-Mahdawi, Muftah, Belmoubarik, Mohamed, Obata, Masao, Yoshikawa, Daiki, Sato, Hideyuki, Nozaki, Tomohiro, Oda, Tatsuki, Sahashi, Masashi |
| المصدر: | Phys. Rev. B 100, 054423 (2019) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | The electric control of magnetic anisotropy has important applications for nonvolatile memory and information processing. By first-principles calculations, we show a large nonvolatile control of magnetic anisotropy in ferromagnetic/ferroelectric CoPt/ZnO interface. Using the switched electric polarization of ZnO, the density-of-states and magnetic anisotropy at the CoPt surface show a large change. Due to a strong Co/Pt orbitals hybridization and a large spin-orbit coupling, a large control of magnetic anisotropy was found. We experimentally measured the change of effective anisotropy by tunneling resistance measurements in CoPt/Mg-doped ZnO/Co junctions. Additionally, we corroborate the origin of the control of magnetic anisotropy by observations on tunneling anisotropic magnetoresistance. Comment: 16 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.100.054423 |
| URL الوصول: | http://arxiv.org/abs/1810.03838 |
| رقم الأكسشن: | edsarx.1810.03838 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.100.054423 |
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