Preparation of high sensitive magnetic sensor using multiferroic tunnel junctions
| Project/Area Number |
15H03548
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied materials
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Fiscal Year 2015: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Keywords | BiFeO3 / マルチフェロイクス / スピントロニクス / 磁気センサ / トンネル接合 / 電気磁気効果 / 室温 / マルチフェロイックス / 電磁気効果 / 磁気抵抗効果 / 薄膜 / マルチフェロイック / トンネル電気効果 / 超高感度磁気センサ |
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| Outline of Final Research Achievements |
Development of electronic devices based on noble ideas is essential to sustainably continue a highly sophisticated society. In this project, we investigated elemental technologies necessary to realize a novel highly sensitive magnetic sensor by using the multiferroics magneto-electric effect. We succeeded to find a new multiferroic (BiFeO3) phase by structural analyses using highly accurate electron beam diffraction. We succeeded in observing the electro-magnetic effect of controlling the magnetization direction by an external electric field at room temperature using a multiferroic thin film, and magneto-electric effect could be explained by the theoretical prediction of the first principle calculation. Finally, in experiments, the spontaneous polarization due to an external magnetic field could be controlled, it was found that low noise of measurement system is important for high sensitivity magnetic sensor.
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Report
(4 results)
Research Products
(18 results)
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[Journal Article] Noise suppression and sensitivity manipulation of magnetic tunnel junction sensors with soft magnetic Co70.5Fe4.5Si15B10 layer2017
Author(s)
L. Huang, Z. H. Yuan, B. S. Tao, C. H. Wan, P. Guo, Q. T. Zhang, L. Yin, J. F. Feng, T. Nakano, Hiroshi Naganuma, H. F. Liu, Y. Yan, and X. F. Han
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Journal Title
Journal of Applied Physics
Volume: 122
Issue: 11
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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