Generating Unexpected Spin Echoes in Dipolar Solids with Pi Pulses

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dc.creatorLi, Dale
dc.creatorDementyev, A. E.
dc.creatorDong, Yanqun
dc.creatorRamos, R. G.
dc.creatorBarrett, S. E.
dc.date2007-05-04
dc.date.accessioned2026-07-07T08:01:34Z
dc.date.available2026-07-07T08:01:34Z
dc.descriptionNMR spin echo measurements of C-13 in C60, Y-89 in Y2O3, and Si-29 in silicon are shown to defy conventional expectations when more that one pi pulse is used. Multiple pi-pulse echo trains may either freeze our or accelerate the decay of the signal, depending on the pi-pulse phase. Average Hamiltonian theory, combined with exact quantum calculations, reveals an intrinsic cause for these coherent phenomena: the dipolar coupling has a many-body effect during any real, finite pulse.
dc.description4 pages, 4 color figures, to appear in PRL May 2007
dc.identifierhttps://arxiv.org/abs/0705.0667
dc.identifierhttp://arxiv.org/abs/0705.0667
dc.identifierPhys. Rev. Lett. 98, 190401 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.190401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/128951
dc.subjectQuantum Physics
dc.subjectMesoscale and Nanoscale Physics
dc.titleGenerating Unexpected Spin Echoes in Dipolar Solids with Pi Pulses
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