Fast current-induced skyrmion motion in synthetic antiferromagnets

• 成果类型: Article
• 署名作者: Pham, Van Tuong; Sisodia, Naveen; Di Manici, Ilaria; Urrestarazu-Larranaga, Joseba; Bairagi, Kaushik; Pelloux-Prayer, Johan; Guedas, Rodrigo; Buda-Prejbeanu, Liliana D.; Auffret, Stephane; Locatelli, Andrea; Mentes, Tevfik Onur; Pizzini, Stefania; Kumar, Pawan; Finco, Aurore; Jacques, Vincent; Gaudin, Gilles; Boulle, Olivier
• 署名单位: Communaute Universite Grenoble Alpes; Institut National Polytechnique de Grenoble; Universite Grenoble Alpes (UGA); CEA; Centre National de la Recherche Scientifique (CNRS); Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS); Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Gandhinagar; Universidad Politecnica de Madrid; Elettra Sincrotrone Trieste; Centre National de la Recherche Scientifique (CNRS); Universite de Montpellier; Interuniversity Microelectronics Centre
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13854
• DOI: 10.1126/science.add5751
• 发表日期: 2024-04-19
• 页码: 307-312
• 关键词: magnetic skyrmions; DYNAMICS; temperature; domains; co/ru

摘要

Magnetic skyrmions-topologically protected spin textures-have shown promise as information carriers in spintronic devices. Although they can be manipulated with electric currents, their speeds in tracks tend to be limited by phenomena such as the skyrmion Hall effect, which deflects and damps the skyrmion motion. Pham et al. avoided this issue, typical of ferromagnets, by using an antiferromagnet instead. The synthetic antiferromagnetic material, fabricated by sputtering, was composed of two platinum/cobalt layers coupled through a thin layer of ruthenium. The authors used magnetic force microscopy to monitor the motion of skyrmions after current injections and measured skyrmion velocities of up to 900 meters per second along the current direction. -Jelena Stajic