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Zeitschrift für Physik B Condensed Matter

, Volume 99, Issue 3, pp 333–338 | Cite as

The phase diagram of (NH4I)x(KI)1−x

  • M. Paasch
  • M. Winterlich
  • R. Böhmer
  • R. Sonntag
  • G. J. McIntyre
  • A. Loidl
Original Contributions

Abstract

The χ,T phase diagram of (NH4I)x(KI)1−x has been determined using neutron diffraction experiments and dielectric spectroscopy. At low temperatures and with decreasing χ, the sequence γ, β, ε and glass phase has been detected. The critical concentration χc≈0.55 separates the glassy phase with frozen-in orientational disorder from the ε phase which reveals long-range orientational order. Close to χc our experiments reveal evidence for two subsequent glass transitions.

PACS

61.12.-q 77.20.+y 81.30.Dz 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • M. Paasch
    • 1
  • M. Winterlich
    • 1
  • R. Böhmer
    • 1
    • 2
  • R. Sonntag
    • 3
    • 4
  • G. J. McIntyre
    • 5
  • A. Loidl
    • 1
  1. 1.Institut für FestkörperphysikTechnische Hochschule DarmstadtDarmstadtGermany
  2. 2.Institut für Physikalische ChemieUniversität MainzMainzGermany
  3. 3.BENSCHahn-Meitner InstitutBerlinGermany
  4. 4.Institut für KristallographieUniverstität TübingenTübingenGermany
  5. 5.Institut Laue-LangevinGrenobleFrance

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