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arXiv · 1208.3997

Towards the chemical tuning of entanglement in molecular nanomagnets

I. Siloi·F. Troiani
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Abstract

Antiferromagnetic spin rings represent prototypical realizations of highly correlated, low-dimensional systems. Here we theoretically show how the introduction of magnetic defects by controlled chemical substitutions results in a strong spatial modulation of spin-pair entanglement within each ring. Entanglement between local degrees of freedom (individual spins) and collective ones (total ring spins) are shown to coexist in exchange-coupled ring dimers, as can be deduced from general symmetry arguments. We verify the persistence of these features at finite temperatures, and discuss them in terms of experimentally accessible observables.

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I. Siloi, F. Troiani. 2012-08-20. Towards the chemical tuning of entanglement in molecular nanomagnets. https://doi.org/10.1103/physrevb.86.224404

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