Coherent manipulation of electron spins up to ambient temperatures in Cr$^{5+}$(S=1/2) doped K$_3$NbO$_8$

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dc.creatorNellutla, S.
dc.creatorChoi, K. -Y.
dc.creatorPati, M.
dc.creatorvan Tol, J.
dc.creatorChiorescu, I.
dc.creatorDalal, N. S.
dc.date2007-10-27
dc.date.accessioned2026-07-07T08:39:05Z
dc.date.available2026-07-07T08:39:05Z
dc.descriptionWe report coherent spin manipulation on Cr$^{5+}$ (\emph{S} = 1/2, \emph{I} = 0) doped K$_3$NbO$_8$, which constitutes a dilute two-level model relevant for use as a spin qubit. Rabi oscillations are observed for the first time in a spin system based on transition metal oxides up to room temperature. At liquid helium temperature the phase coherence relaxation time \emph{$T_2$} reaches $\sim 10$ $μ$s and, with a Rabi frequency of 20 MHz, yields a single qubit figure of merit \emph{$Q_M$} of about 500. This shows that a diluted ensemble of Cr$^{5+}$ (\emph{S} = 1/2) doped K$_3$NbO$_8$ is a potential candidate for solid-state quantum information processing.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/0710.5199
dc.identifierhttp://arxiv.org/abs/0710.5199
dc.identifierPhys. Rev. Lett. 99, 137601 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.137601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140953
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleCoherent manipulation of electron spins up to ambient temperatures in Cr$^{5+}$(S=1/2) doped K$_3$NbO$_8$
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