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Interference effect in the Landau-Zener tunneling of the antiferromagnetically coupled dimer of single-molecule magnets

D. A. Garanin
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Abstract

Two antiferromagnetically coupled tunneling systems is a minimal model exhibiting the effect of quantum-mechanical phase in the Landau-Zener effect. It is shown that the averaged staying probability oscillates vs resonance shift between the two particles, as well as vs sweeping rate. Such a resonance shift can be produced in Mn-4 dimers by the gradient of the magnetic field.

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D. A. Garanin. 2004-04-30. Interference effect in the Landau-Zener tunneling of the antiferromagnetically coupled dimer of single-molecule magnets. https://doi.org/10.1103/physrevb.70.212403

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