Yi, Min and Zhang, Hongbin and Xu, Bai-Xiang (2017):
Voltage-driven charge-mediated fast 180 degree magnetization switching in nanoheterostructure at room temperature.
3, In: npj Computational Materials, (1), Nature, ISSN 2057-3960,
DOI: 10.1038/s41524-017-0043-x,
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Item Type: | Article |
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Origin: | Secondary publication via sponsored Golden Open Access |
Title: | Voltage-driven charge-mediated fast 180 degree magnetization switching in nanoheterostructure at room temperature |
Language: | English |
Abstract: | Voltage-driven 180° magnetization switching without electric current provides the possibility for revolutionizing the spintronics. We demonstrated the voltage-driven charge-mediated 180° magnetization switching at room temperature by combining first-principles calculations and temperature-dependent magnetization dynamics simulation. The electric field (E)-induced interface charge is found to allow a giant modulation of the magnetic anisotropy (K) of the nanomagnet. Particularly K is revealed to vary linearly with respect to E and the epitaxial strain. Magnetization dynamics simulations using the so-obtained K show that both in-plane and perpendicular 180° switching can be achieved by E pulses. The temperature effect renders the 180° switching as probability events. Statistical analysis indicates a fast (around 4 ns) and low-error-probability 180° switching achievable at room temperature by controlling the magnitude of E and the pulse width. The study inspires the rational design of miniaturized nanoscale spintronic devices where thermal fluctuation has a great impact. |
Journal or Publication Title: | npj Computational Materials |
Volume: | 3 |
Number: | 1 |
Publisher: | Nature |
Classification DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Mechanics of functional Materials |
Date Deposited: | 01 Nov 2017 13:46 |
Last Modified: | 22 Jan 2020 14:13 |
DOI: | 10.1038/s41524-017-0043-x |
URN: | urn:nbn:de:tuda-tuprints-69237 |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/6923 |
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