Quantum Thermoactivation of Nanoscale Magnets
arXiv:cond-mat/9805055 · doi:10.1103/PhysRevE.55.2569
Abstract
The integral relaxation time describing the thermoactivated escape of a uniaxial quantum spin system interacting with a boson bath is calculated analytically in the whole temperature range. For temperatures T much less than the barrier height ΔU, the level quantization near the top of the barrier and the strong frequency dependence of the one-boson transition probability can lead to the regularly spaced deep minima of the thermoactivation rate as a function of the magnetic field applied along the z axis.
4 pages, no figures, rejected from Phys. Rev. Lett
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Cited by in corpus (10)
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