Realization of Energy Harvesting Based on Stress-Induced Modification of Magnetic Domain Structures in Microwires
| Autor: | Chuang Ma, Sabpreet Bhatti, Xiaoxi Liu, S. N. Piramanayagam |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Magnetic domain Magnetostriction 01 natural sciences Engineering physics Electronic Optical and Magnetic Materials Stress (mechanics) Magnetization Domain wall (magnetism) Stack (abstract data type) 0103 physical sciences Electrical and Electronic Engineering Anisotropy Energy harvesting |
| Zdroj: | IEEE Transactions on Magnetics. 55:1-7 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | Energy harvesting, particularly through ambient sources, is gaining significant interest in the recent past because of the energy crisis and the pollution associated with fossil fuels. With the emergence of Internet-of-Things (IoT), where billions of IoT devices are expected to communicate with each other, energy harvesting has become even more relevant. In this vision, we have been working on energy harvesting based on magnetic materials, particularly stress-induced domain wall motion. In this paper, we present a detailed overview of our research on stress-induced domain wall motion and the demonstration of energy harvesting. We have carried out micromagnetic simulations, which indicated that an applied stress can change the magnetization direction from transverse direction to the longitudinal direction in a microwire. The experimental results on CoNi/FeCo/CoNi microwires confirmed that such change in domain structure is possible with applied stress. We have shown the details on how a transverse anisotropy is achieved in CoNi/FeCo/CoNi stack. We have also demonstrated that energy can be harvested using the methods described in this paper. The results offer a new magnetic stack, which can be used to achieve energy harvesting through ambient sources. |
| Databáze: | OpenAIRE |
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