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arXiv · 1505.05261

Intrinsic life-time and external manipulation of Neel states in antiferromagnetic adatom spins on semiconductor surfaces

Jun Li·Bang-Gui Liu
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Abstract

It has been proposed that antiferromagnetic Fe adatom spins on semiconductor Cu-N surfaces can be used to store information [S. Loth {\it et al}, Science \textbf{335}, 196 (2012)]. Here, we investigate spin dynamics of such antiferromagnetic systems through Monte Carlo simulations. We find out the temperature and size laws of switching rates of N\'{e}el states and show that the N\'{e}el states can become stable enough for the information storage when the number of spins reaches to one or two dozens of the Fe spins. We also explore promising methods for manipulating the N\'{e}el states. These could help realize information storage with such antiferromagnetic spin systems.

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Jun Li, Bang-Gui Liu. 2015-05-20. Intrinsic life-time and external manipulation of Neel states in antiferromagnetic adatom spins on semiconductor surfaces. https://doi.org/10.1088/0022-3727/48/27/275303

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