Glass-like two-level systems in minimally disordered mixed crystals

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dc.creatorWrubel, J. P.
dc.creatorHubbard, B. E.
dc.creatorAgladze, N. I.
dc.creatorSievers, A. J.
dc.creatorFedorov, P. P.
dc.creatorKlimenchenko, D. I.
dc.creatorRyskin, A. I.
dc.creatorCampbell, J. A.
dc.date2005-11-18
dc.date2005-11-21
dc.date.accessioned2026-07-07T08:42:25Z
dc.date.available2026-07-07T08:42:25Z
dc.descriptionTHz spectroscopy is used to identify a broad distribution of two-level systems, characteristic of glasses, in the substitutional monatomic mixed crystal systems, Ba_{1-x}Ca_xF_2 and Pb_{1-x}Ca_xF_2. In these minimally disordered systems, two-level behavior begins at a specific CaF_2 concentration. The concentration dependence, successfully modeled using the statistics of the impurity distribution in the lattice, points to a collective dopant tunneling mechanism.
dc.description4 pages, 4 figures, 2 tables, submitted to Phys. Rev. Lett v.2: fixed typo in authors list, no text changes
dc.identifierhttps://arxiv.org/abs/cond-mat/0511479
dc.identifierhttp://arxiv.org/abs/cond-mat/0511479
dc.identifierPhys. Rev. Lett. 96, 235503 (2006)
dc.identifierdoi:10.1103/PhysRevLett.96.235503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141953
dc.subjectDisordered Systems and Neural Networks
dc.titleGlass-like two-level systems in minimally disordered mixed crystals
dc.typetext

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