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Journal Article

Antiferromagnetic opto-spintronics


Kampfrath,  Tobias
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Němec, P., Fiebig, M., Kampfrath, T., & Kimel, A. V. (2018). Antiferromagnetic opto-spintronics. Nature Physics, 14(3), 229-241. doi:10.1038/s41567-018-0051-x.

Cite as: https://hdl.handle.net/21.11116/0000-0000-D63E-A
Control and detection of spin order in ferromagnetic materials is the main principle enabling magnetic information to be stored and read in current technologies. Antiferromagnetic materials, on the other hand, are far less utilized, despite having some appealing features. For instance, the absence of net magnetization and stray fields eliminates crosstalk between neighbouring devices, and the absence of a primary macroscopic magnetization makes spin manipulation in antiferromagnets inherently faster than in ferromagnets. However, control of spins in antiferromagnets requires exceedingly high magnetic fields, and antiferromagnetic order cannot be detected with conventional magnetometry. Here we provide an overview and illustrative examples of how electromagnetic radiation can be used for probing and modification of the magnetic order in antiferromagnets. We also discuss possible research directions that are anticipated to be among the main topics defining the future of this rapidly developing field.