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Coherent terahertz control

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Spin and charge terahertz excitations in solids are promising for implementing future technologies such as spintronics and quantum computation, but coherently controlling them has been a significant challenge. Researchers have now manipulated coherent spin waves in an antiferromagnet using the intense magnetic field of ultrashort terahertz pulses.

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Figure 1: The magnetic field component (B) of an ultrashort terahertz pulse — perpendicular to both the electric field component (E) and the propagation direction (the Poynting vector P) — excites coherent magnons through the magnetic dipole interaction.

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Authors and Affiliations

  1. Junichiro Kono is in the Department of Electrical and Computer Engineering and the Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA. kono@rice.edu,

    Junichiro Kono

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  1. Junichiro Kono
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Kono, J. Coherent terahertz control. Nature Photon 5, 5–6 (2011). https://doi.org/10.1038/nphoton.2010.288

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