Switching of spins and entanglement in surface-supported antiferromagnetic chains
Sivkov, Ilia N.
Bazhanov, Dmitry I.
Stepanyuk, Valeri S.
- Journal Article
Rights / licenseCreative Commons Attribution 4.0 International
Previous experimental studies discovered universal growth of chains and nanowires of various chemical elements on a corrugated molecular network of Cu3N on the Cu(110). Herein, performing combined ab initio and quantum Hamiltonian studies we demonstrate that such chains can be used for a fast spin switching and entanglement generation by locally applied magnetic pulses. As an example, we show that in antiferromagnetic Co chains a strong entanglement between ends of chains occurs during spin switching. A novel parity effect in spin dynamics is reported. Even-numbered chains are found to exhibit significantly faster spin switching than odd-numbered counterparts. Moreover, at certain parameters of the system the dimerization effect in the spin dynamics of the chains was found. Our studies give a clear evidence that tailoring spin dynamics and entanglement can be achieved by magnetic fields and by tuning exchange interactions in supported chains. Show more
Journal / seriesScientific Reports
Pages / Article No.
PublisherNature Publishing Group
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