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

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

[发布日期] 2004-12-01

[关键词] COHERENCE