Abstract.
Based on a parameterized electronic many-body theory we calculate the spectrum of optical second-harmonic generation (SHG) on an antiferromagnetic (AF) surface: NiO (001). The occurrence of AF spectral lines is further exploited for the calculation of ultra-fast spin dynamics. This spin dynamics is observable in SHG. It is characterized by both a sharp drop of the AF signal within a few femtoseconds and a long persistence (up to nanoseconds) of the spin coherence. These two features constitute an ideal system for possible applications in both magnetic recording and quantum computing.
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Received: 16 October 2001 / Revised version: 21 March 2002 / Published online: 6 June 2002
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Ney, O., Trzeciecki, M. & Hübner, W. Femtosecond dynamics of spin-dependent SHG response from NiO (001) . Appl Phys B 74, 741–744 (2002). https://doi.org/10.1007/s00340-002-0926-4
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DOI: https://doi.org/10.1007/s00340-002-0926-4