Please use this identifier to cite or link to this item:
https://doi.org/10.1038/s42005-017-0002-3
Title: | Oscillatory spin-orbit torque switching induced by field-like torques | Authors: | Lee, J.M. Kwon, J.H. Ramaswamy, R. Yoon, J. Son, J. Qiu, X. Mishra, R. Srivastava, S. Cai, K. Yang, H. |
Issue Date: | 2018 | Publisher: | Nature Research | Citation: | Lee, J.M., Kwon, J.H., Ramaswamy, R., Yoon, J., Son, J., Qiu, X., Mishra, R., Srivastava, S., Cai, K., Yang, H. (2018). Oscillatory spin-orbit torque switching induced by field-like torques. Communications Physics 1 (1) : 2. ScholarBank@NUS Repository. https://doi.org/10.1038/s42005-017-0002-3 | Rights: | Attribution 4.0 International | Abstract: | Deterministic magnetization switching using spin-orbit torque (SOT) has recently emerged as an efficient means to electrically control the magnetic state of ultrathin magnets. The SOT switching still lacks in oscillatory switching characteristics over time, therefore, it is limited to bipolar operation where a change in polarity of the applied current or field is required for bistable switching. The coherent rotation based oscillatory switching schemes cannot be applied to SOT, because the SOT switching occurs through expansion of magnetic domains. Here we experimentally achieve oscillatory switching in incoherent SOT process by controlling domain wall dynamics. We find that a large field-like component can dynamically influence the domain wall chirality which determines the direction of SOT switching. Consequently, under nanosecond current pulses, the magnetization switches alternatively between the two stable states. By utilizing this oscillatory switching behavior, we demonstrate a unipolar deterministic SOT switching scheme by controlling the current pulse duration. © 2018, The Author(s). | Source Title: | Communications Physics | URI: | https://scholarbank.nus.edu.sg/handle/10635/211678 | ISSN: | 2399-3650 | DOI: | 10.1038/s42005-017-0002-3 | Rights: | Attribution 4.0 International |
Appears in Collections: | Elements Staff Publications |
Show full item record
Files in This Item:
File | Description | Size | Format | Access Settings | Version | |
---|---|---|---|---|---|---|
10_1038_s42005-017-0002-3.pdf | 1.16 MB | Adobe PDF | OPEN | None | View/Download |
This item is licensed under a Creative Commons License