Macroscopic Quantum Oscillations of Antiferromagnetic Nanoclusters in a Swept Magnetic Field

Details Macroscopic Quantum Oscillations of Antiferromagnetic Nanoclusters in a Swept Magnetic Field Macroscopic Quantum Oscillations of Antiferromagnetic Nanoclusters in a Swept Magnetic Field

2000-04-05

arxiv.org/abs/cond-mat/0004074v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, RevTex

Scientific paper

New macroscopic quantum interference effects in the behavior of the antiferromagnetic nanoclusters under action of a swept magnetic field are predicted and theoretically investigated, namely : oscillations of the magnetic susceptibility of nanocluster similar to the electron Bloch oscillations in crystal and the corresponding Stark ladder-like resonances in ac-magnetic field. These effects are related to that of the macroscopic quantum coherence phenomena. The analogy of the antiferromagnetic nanoclusters quantum behavior and Josephson junction with a small capacity was revealed as well.

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