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Terahertz Near-Field Nano-Spectroscopy of Antiferromagnetic Resonance

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Abstract

We developed a terahertz scanning near-field nanoscope to visualize the spectral-temporal responses of antiferromagnetic modes in Sm0.4Er0.6FeO3. Our results demonstrate the first detection of collective spin precession at the femtosecond and nanometer scales.

© 2019 The Author(s)

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