First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures
Using fist-principles calculations, we study the B atom of diffusion process and the origin of the perpendicular magnetic anisotropy in MgO|CoFe|Ta structures with boron. It is found that B atoms are more likely to enter the Ta layer than FeCo layer and MgO layer. This result is in good agreement wi...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379723000323 |
| _version_ | 1797924714857889792 |
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| author | Yanjie Wang Xiaoyuan Nie Junhui Song Chao Wang Fan Yang Yaodan Chi Xiaotian Yang Ye Shen Chunyan Xu |
| author_facet | Yanjie Wang Xiaoyuan Nie Junhui Song Chao Wang Fan Yang Yaodan Chi Xiaotian Yang Ye Shen Chunyan Xu |
| author_sort | Yanjie Wang |
| collection | DOAJ |
| description | Using fist-principles calculations, we study the B atom of diffusion process and the origin of the perpendicular magnetic anisotropy in MgO|CoFe|Ta structures with boron. It is found that B atoms are more likely to enter the Ta layer than FeCo layer and MgO layer. This result is in good agreement with that of the experimental and theoretical results. Furthermore, we elucidate the physical origin of the interfacial PMA Ta|CoFe|MgO structure with B element. We find that interfacial PAM come from both the MgO|CoFe and CoFe|Ta layer interfaces. These findings provide a comprehensive understanding of the PMA and point towards the possibility to achieve the advanced-node STT-MRAM with high thermal stability. |
| first_indexed | 2024-04-10T15:05:27Z |
| format | Article |
| id | doaj.art-80b7c9e105634ef19e363caa22f97cd6 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-10T15:05:27Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-80b7c9e105634ef19e363caa22f97cd62023-02-15T04:27:57ZengElsevierResults in Physics2211-37972023-02-0145106239First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structuresYanjie Wang0Xiaoyuan Nie1Junhui Song2Chao Wang3Fan Yang4Yaodan Chi5Xiaotian Yang6Ye Shen7Chunyan Xu8Key Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, China; Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology, Ministry of Education, Northeast Normal University, Changchun 130024, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory for Comprehensive Energy Saving of Cold Regions Architecture of Ministry of Education School of Electrical and Computer, Jilin Jianzhu University, Changchun 130118, China; Corresponding authors.Institute for Interdisciplinary Quantum Information Technology, Jilin Engineering Normal University, Jilin Engineering Laboratory for Quantum Information Technology, Changchun 130052, China; Corresponding authors.Using fist-principles calculations, we study the B atom of diffusion process and the origin of the perpendicular magnetic anisotropy in MgO|CoFe|Ta structures with boron. It is found that B atoms are more likely to enter the Ta layer than FeCo layer and MgO layer. This result is in good agreement with that of the experimental and theoretical results. Furthermore, we elucidate the physical origin of the interfacial PMA Ta|CoFe|MgO structure with B element. We find that interfacial PAM come from both the MgO|CoFe and CoFe|Ta layer interfaces. These findings provide a comprehensive understanding of the PMA and point towards the possibility to achieve the advanced-node STT-MRAM with high thermal stability.http://www.sciencedirect.com/science/article/pii/S2211379723000323Perpendicular magnetic anisotropyPhysical originHeterogeneous structure |
| spellingShingle | Yanjie Wang Xiaoyuan Nie Junhui Song Chao Wang Fan Yang Yaodan Chi Xiaotian Yang Ye Shen Chunyan Xu First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures Results in Physics Perpendicular magnetic anisotropy Physical origin Heterogeneous structure |
| title | First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures |
| title_full | First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures |
| title_fullStr | First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures |
| title_full_unstemmed | First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures |
| title_short | First-principles study of origin of perpendicular magnetic anisotropy in MgO|CoFeB|Ta structures |
| title_sort | first principles study of origin of perpendicular magnetic anisotropy in mgo cofeb ta structures |
| topic | Perpendicular magnetic anisotropy Physical origin Heterogeneous structure |
| url | http://www.sciencedirect.com/science/article/pii/S2211379723000323 |
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