Wang Chenying, Du Yujing, Zhao Yifan, He Zhexi, Wang Song, Zhang Yaxin, Jiang Yuxuan, Du Yongjun, Wu Jingen, Jiang Zhuangde, Liu Ming
State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, School of Instrument Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Nanomaterials (Basel). 2023 Dec 17;13(24):3158. doi: 10.3390/nano13243158.
The flexible electronics have application prospects in many fields, including as wearable devices and in structural detection. Spintronics possess the merits of a fast response and high integration density, opening up possibilities for various applications. However, the integration of miniaturization on flexible substrates is impeded inevitably due to the high Joule heat from high current density (10 A/m). In this study, a prototype flexible spintronic with device antiferromagnetic/ferromagnetic heterojunctions is proposed. The interlayer coupling strength can be obviously altered by sunlight soaking via direct photo-induced electron doping. With the assistance of a small magnetic field (±125 Oe), the almost 180° flip of magnetization is realized. Furthermore, the magnetoresistance changes (15~29%) of flexible spintronics on fingers receiving light illumination are achieved successfully, exhibiting the wearable application potential. Our findings develop flexible spintronic sensors, expanding the vision for the novel generation of photovoltaic/spintronic devices.
柔性电子器件在包括可穿戴设备和结构检测在内的许多领域都有应用前景。自旋电子学具有响应速度快和集成密度高的优点，为各种应用开辟了可能性。然而，由于高电流密度（10 A/m）产生的高热量，在柔性基板上进行小型化集成不可避免地受到阻碍。在本研究中，提出了一种具有反铁磁/铁磁异质结器件的柔性自旋电子学原型。通过直接光致电子掺杂，阳光照射可显著改变层间耦合强度。在小磁场（±125 Oe）的辅助下，实现了近180°的磁化翻转。此外，成功实现了手指上接收光照的柔性自旋电子器件的磁阻变化（15%~29%），展现出可穿戴应用潜力。我们的研究成果开发了柔性自旋电子传感器，拓展了新一代光伏/自旋电子器件的视野。
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