Radiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet

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dc.creatorBal, M.
dc.creatorFriedman, Jonathan R.
dc.creatorChen, W.
dc.creatorTuominen, M. T.
dc.creatorBeedle, C. C.
dc.creatorRumberger, E. M.
dc.creatorHendrickson, D. N.
dc.date2007-06-23
dc.date2008-03-14
dc.date.accessioned2026-07-07T09:26:29Z
dc.date.available2026-07-07T09:26:29Z
dc.descriptionWe measure magnetization changes in a single crystal of the single-molecule magnet Fe8 when exposed to intense, short (<20 $μ$s) pulses of microwave radiation resonant with the m = 10 to 9 transition. We find that radiation induces a phonon bottleneck in the system with a time scale of ~5 $μ$s. The phonon bottleneck, in turn, drives the spin dynamics, allowing observation of thermally assisted resonant tunneling between spin states at the 100-ns time scale. Detailed numerical simulations quantitatively reproduce the data and yield a spin-phonon relaxation time of T1 ~ 40 ns.
dc.description6 RevTeX pages, including 4 EPS figures, version accepted for publication
dc.identifierhttps://arxiv.org/abs/0706.3471
dc.identifierhttp://arxiv.org/abs/0706.3471
dc.identifierEurophys. Lett., 82, 17005 (2008)
dc.identifierdoi:10.1209/0295-5075/82/17005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156766
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleRadiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet
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