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antiferromagnetic spintronics 1domain-wall motion 1high-throughput cryostats 1low-temperature measurements 1near-field scanning probe 1neel vector polarity 1optical nonlinear anomalous Hall effect 1silicon quantum dots 1spectroscopy methods 1valley splitting 1

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cond-mat.mtrl-sci2026

Sign-resolved nanoscale readout and control of hidden antiferromagnetic spin order

A. Schmid, D. Siebenkotten, D. Dai +16

The paper demonstrates a nanoscale, optoelectronic method to read out the hidden polarity of the Néel vector in a fully compensated antiferromagnet by using mid‑infrared near‑field…