Glasslike two-level systems in minimally disordered mixed crystals

Jonathan P. Wrubel, B. E. Hubbard, N. I. Agladze, A. J. Sievers, P. P. Fedorov, D. I. Klimenchenko, A. I. Ryskin, J. A. Campbell

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

THz spectroscopy is used to identify a broad distribution of two-level systems, characteristic of glasses, in the substitutional monatomic mixed crystal systems, Ba1-xCaxF2 and Pb1-xCaxF2. In these minimally disordered systems, two-level behavior, which was not previously known to occur, begins at a specific CaF2 concentration. The concentration dependence, successfully modeled using the statistics of the impurity distribution in the lattice, points to a collective dopant tunneling mechanism.

Original languageEnglish
Article number235503
JournalPhysical Review Letters
Volume96
Issue number23
DOIs
StatePublished - 2006
Externally publishedYes

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mixed crystals
statistics
impurities
glass
spectroscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Wrubel, J. P., Hubbard, B. E., Agladze, N. I., Sievers, A. J., Fedorov, P. P., Klimenchenko, D. I., ... Campbell, J. A. (2006). Glasslike two-level systems in minimally disordered mixed crystals. Physical Review Letters, 96(23), [235503]. https://doi.org/10.1103/PhysRevLett.96.235503

Glasslike two-level systems in minimally disordered mixed crystals. / Wrubel, Jonathan P.; Hubbard, B. E.; Agladze, N. I.; Sievers, A. J.; Fedorov, P. P.; Klimenchenko, D. I.; Ryskin, A. I.; Campbell, J. A.

In: Physical Review Letters, Vol. 96, No. 23, 235503, 2006.

Research output: Contribution to journalArticle

Wrubel, JP, Hubbard, BE, Agladze, NI, Sievers, AJ, Fedorov, PP, Klimenchenko, DI, Ryskin, AI & Campbell, JA 2006, 'Glasslike two-level systems in minimally disordered mixed crystals', Physical Review Letters, vol. 96, no. 23, 235503. https://doi.org/10.1103/PhysRevLett.96.235503
Wrubel JP, Hubbard BE, Agladze NI, Sievers AJ, Fedorov PP, Klimenchenko DI et al. Glasslike two-level systems in minimally disordered mixed crystals. Physical Review Letters. 2006;96(23). 235503. https://doi.org/10.1103/PhysRevLett.96.235503
Wrubel, Jonathan P. ; Hubbard, B. E. ; Agladze, N. I. ; Sievers, A. J. ; Fedorov, P. P. ; Klimenchenko, D. I. ; Ryskin, A. I. ; Campbell, J. A. / Glasslike two-level systems in minimally disordered mixed crystals. In: Physical Review Letters. 2006 ; Vol. 96, No. 23.
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