Butterfly hysteresis curve is a signature of adiabatic Landau-Zener transition

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dc.creatorVogelsberger, Mark
dc.creatorGaranin, D. A.
dc.creatorSchilling, Rolf
dc.date2005-07-26
dc.date.accessioned2026-07-07T09:36:43Z
dc.date.available2026-07-07T09:36:43Z
dc.descriptionWe stress that the so-called butterfly hysteresis curves observed in dynamical magnetization measurements on systems of low-spin magnetic molecules such as V-15 and V-6 are a signature of adiabatic Landau-Zener transitions rather than that of a phonon bottleneck. We investigate the magnetization dynamics analytically with the help of a simple relaxation theory in the basis of the adabatic energy levels of the spin 1/2, to a qualitative accordance with experimental observations. In particular, reversible behavior is found near zero field, the corresponding susceptibility being bounded by the equilibrium and adiabatic susceptibilities from below and above, respectively.
dc.description4 PR pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0507618
dc.identifierhttp://arxiv.org/abs/cond-mat/0507618
dc.identifierPhys. Rev. B 73, 92412 -(4) (2006)
dc.identifierdoi:10.1103/PhysRevB.73.092412
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160217
dc.subjectStatistical Mechanics
dc.subjectMaterials Science
dc.titleButterfly hysteresis curve is a signature of adiabatic Landau-Zener transition
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