Synthesis and electrical conductivity of crystalline and glassy alloys in the Ag3GeS3Br-GeS2 system

Abstract

We have studied the formation of crystalline and glassy alloys in the Ag3GeS3Br-GeS2 system (0–52 mol % GeS2; Ag3GeS3Br is a glass-forming phase of variable composition) and determined the crystallographic parameters of the Ag3.179(9)Ge1.474(5)S4Br alloy as the saturated solid solution of GeS2 in Ag3GeS3Br: sp. gr. P213, a = 10.16572(3) Å, Z = 4. The electrical conductivity of the crystalline and glassy alloys was measured in the temperature range 250–410 K by a dc probe technique. The current carriers in the alloys are silver cations and halogen anions. We obtained materials with superionic conductivity and proposed a model for conduction in the alloys.

This is a preview of subscription content, access via your institution.

We’re sorry, something doesn't seem to be working properly.

Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

References

  1. 1.

    Wagener, M., Deiseroth, H.-J., and Reiner, C., Ag6GeS4X2 (X: Cl, Br): Surprisingly no filled Laves phases but the first representatives of a new structure type, Z. Kristallogr., 2006, vol. 221, nos. 5–7, pp. 533–538.

    Article  CAS  Google Scholar 

  2. 2.

    Moroz, M.V., Demchenko, P.Yu., Akselrud, L.G., et al., Phase relation along the Ag8GeS6-[(AgBr)4 · GeS2] cross-section. Crystal structure and electric conductivity of Ag6GeS4Br2 in bulk, Chem. Met. Alloys, 2010, no. 3, pp. 161–168.

    Google Scholar 

  3. 3.

    Laqibi, M., Cros, B., Peytavin, S., and Ribes, M., New silver superionic conductors Ag7XY5Z (X = Si, Ge, Sn; Y = S, Se; Z = Cl, Br, I)—synthesis and electrical studies, Solid State Ionics, 1987, vol. 23, nos. 1–2, pp. 21–26.

    Article  CAS  Google Scholar 

  4. 4.

    Ivanov-Shitz, A.K. and Murin, I.V., Ionika tverdogo tela (Solid State Ionics), St. Petersburg: S.-Peterburg. Univ., 2000, vol. 1.

  5. 5.

    Parthe, E., Contribution to the crystal chemistry of normal and defect tetrahedral structures, Z. Kristallogr., B, 1963, vol. 119, nos. 3–4, pp. 204–225.

    Article  CAS  Google Scholar 

  6. 6.

    Berger, L.I. and Prochukhan, V.D., Troinye almazopodobnye poluprovodniki (Ternary Diamond-Like Semiconductors), Moscow: Metallurgiya, 1968.

    Google Scholar 

  7. 7.

    Goryunova, N.A., Slozhnye almazopodobnye poluprovodniki (Multicomponent Diamond-Like Semiconductors), Moscow: Sovetskoe Radio, 1968.

    Google Scholar 

  8. 8.

    Roos, J., Brinkmann, D., Mali, M., et al., (AgI)x · (Ag2S · GeS2)1 − x glasses studied by 109Ag NMR, Solid State Ionics, 1988, vols. 28–30, no. 1, pp. 710–712.

    Article  Google Scholar 

  9. 9.

    Kraus, W. and Nolze, G., PowderCell for Windows (Version 2.3), Berlin: Federal Inst. for Materials Research and Testing, 1999.

    Google Scholar 

  10. 10.

    Stoe WinX POW, Version 2.21, Darmstadt: Stoe & Cie GmbH, 2007.

  11. 11.

    Mykolaychuk, A.G., Moroz, N.V., Demchenko, P.Yu., et al., Electrical conductivity of Ag8SnS6-Ag2SnS3-AgBr alloys, Inorg. Mater., 2010, vol. 46, no. 7, pp. 707–710.

    Article  CAS  Google Scholar 

  12. 12.

    Moroz, M.V., Demchenko, P.Yu., Akselrud, L.G., et al., Synthesis, structure and electrical properties of the new representative of argyrodite family, Ag3GeS3Br, 17th Conf. on Solid Compounds of Transition Elements, Annecy, 2010, p. 69.

    Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to M. V. Moroz.

Additional information

Original Russian Text © M.V. Moroz, P.Yu. Demchenko, O.G. Mykolaychuk, L.G. Akselrud, R.E. Gladyshevskii, 2013, published in Neorganicheskie Materialy, 2013, Vol. 49, No. 9, pp. 931–936.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Moroz, M.V., Demchenko, P.Y., Mykolaychuk, O.G. et al. Synthesis and electrical conductivity of crystalline and glassy alloys in the Ag3GeS3Br-GeS2 system. Inorg Mater 49, 867–871 (2013). https://doi.org/10.1134/S0020168513090100

Download citation

Keywords

  • AgBr
  • Glassy Alloy
  • Silver Cation
  • Saturated Solid Solution
  • Halogen Anion