Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs
The writing performance of the easy-cone magnetic tunnel junction (MTJ) and perpendicularly magnetized MTJ (pMTJ) under various temperatures was investigated based on the macrospin model. When the temperature is changed from 273 K to 373 K, the switching current density of the pMTJ changes by 56%, w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/2/337 |
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| author | Jingwei Long Qi Hu Zhengping Yuan Yunsen Zhang Yue Xin Jie Ren Bowen Dong Gengfei Li Yumeng Yang Huihui Li Zhifeng Zhu |
| author_facet | Jingwei Long Qi Hu Zhengping Yuan Yunsen Zhang Yue Xin Jie Ren Bowen Dong Gengfei Li Yumeng Yang Huihui Li Zhifeng Zhu |
| author_sort | Jingwei Long |
| collection | DOAJ |
| description | The writing performance of the easy-cone magnetic tunnel junction (MTJ) and perpendicularly magnetized MTJ (pMTJ) under various temperatures was investigated based on the macrospin model. When the temperature is changed from 273 K to 373 K, the switching current density of the pMTJ changes by 56%, whereas this value is only 8% in the easy-cone MTJ. Similarly, the temperature-induced variation of the switching delay is more significant in the pMTJ. This indicates that the easy-cone MTJ has a more stable writing performance under temperature variations, resulting in a wider operating temperature range. In addition, these two types of MTJs exhibit opposite temperature dependence in the current overdrive and write error rate. In the easy cone MTJ, these two performance metrics will reduce as temperature is increased. The results shown in this work demonstrate that the easy-cone MTJ is more suitable to work at high temperatures compared with the pMTJ. Our work provides a guidance for the design of STT-MRAM that is required to operate at high temperatures. |
| first_indexed | 2024-03-09T11:32:23Z |
| format | Article |
| id | doaj.art-2d5e432f9d374755a28340634dea954b |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:32:23Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2d5e432f9d374755a28340634dea954b2023-11-30T23:48:29ZengMDPI AGNanomaterials2079-49912023-01-0113233710.3390/nano13020337Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJsJingwei Long0Qi Hu1Zhengping Yuan2Yunsen Zhang3Yue Xin4Jie Ren5Bowen Dong6Gengfei Li7Yumeng Yang8Huihui Li9Zhifeng Zhu10School of Information Science and Technology, Shanghai Tech University, Shanghai 201210, ChinaBeijing Superstring Academy of Memory Technology, Beijing 100176, ChinaSchool of Information Science and Technology, Shanghai Tech University, Shanghai 201210, ChinaBeijing Superstring Academy of Memory Technology, Beijing 100176, ChinaSchool of Information Science and Technology, Shanghai Tech University, Shanghai 201210, ChinaSchool of Information Science and Technology, Shanghai Tech University, Shanghai 201210, ChinaBeijing Superstring Academy of Memory Technology, Beijing 100176, ChinaBeijing Superstring Academy of Memory Technology, Beijing 100176, ChinaSchool of Information Science and Technology, Shanghai Tech University, Shanghai 201210, ChinaBeijing Superstring Academy of Memory Technology, Beijing 100176, ChinaSchool of Information Science and Technology, Shanghai Tech University, Shanghai 201210, ChinaThe writing performance of the easy-cone magnetic tunnel junction (MTJ) and perpendicularly magnetized MTJ (pMTJ) under various temperatures was investigated based on the macrospin model. When the temperature is changed from 273 K to 373 K, the switching current density of the pMTJ changes by 56%, whereas this value is only 8% in the easy-cone MTJ. Similarly, the temperature-induced variation of the switching delay is more significant in the pMTJ. This indicates that the easy-cone MTJ has a more stable writing performance under temperature variations, resulting in a wider operating temperature range. In addition, these two types of MTJs exhibit opposite temperature dependence in the current overdrive and write error rate. In the easy cone MTJ, these two performance metrics will reduce as temperature is increased. The results shown in this work demonstrate that the easy-cone MTJ is more suitable to work at high temperatures compared with the pMTJ. Our work provides a guidance for the design of STT-MRAM that is required to operate at high temperatures.https://www.mdpi.com/2079-4991/13/2/337spin-transfer torqueeasy-cone magnetizationprecession switchingcurrent overdrivewrite error rate |
| spellingShingle | Jingwei Long Qi Hu Zhengping Yuan Yunsen Zhang Yue Xin Jie Ren Bowen Dong Gengfei Li Yumeng Yang Huihui Li Zhifeng Zhu Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs Nanomaterials spin-transfer torque easy-cone magnetization precession switching current overdrive write error rate |
| title | Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs |
| title_full | Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs |
| title_fullStr | Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs |
| title_full_unstemmed | Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs |
| title_short | Comparative Study of Temperature Impact in Spin-Torque Switched Perpendicular and Easy-Cone MTJs |
| title_sort | comparative study of temperature impact in spin torque switched perpendicular and easy cone mtjs |
| topic | spin-transfer torque easy-cone magnetization precession switching current overdrive write error rate |
| url | https://www.mdpi.com/2079-4991/13/2/337 |
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