7 March 2014 Ultrafast spin precession and transport controlled and probed with terahertz radiation
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Abstract
Terahertz (THz) electromagnetic radiation is located between the realms of electronics and optics and has successfully been used to probe and even control numerous low-energy excitations including phonons, excitons and Cooper pairs. Here, we show that THz spectroscopy is also a highly useful tool in the field of ultrafast spinbased electronics (spintronics) and consider the resonant manipulation of the magnetization of an antiferromagnet (through the THz Zeeman torque) and the probing of the tailored transport of spin density from a ferromagnetic into a nonmagnetic metal (through the THz inverse spin Hall effect).
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T. Kampfrath, M. Battiato, A. Sell, F. Freimuth, A. Leitenstorfer, M. Wolf, R. Huber, P. M. Oppeneer, M. Münzenberg, "Ultrafast spin precession and transport controlled and probed with terahertz radiation", Proc. SPIE 8984, Ultrafast Phenomena and Nanophotonics XVIII, 898415 (7 March 2014); doi: 10.1117/12.2039000; https://doi.org/10.1117/12.2039000
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