Zeitschrift für Physik B Condensed Matter

, Volume 70, Issue 3, pp 361–369 | Cite as

Low-temperature properties of amorphous (Mo1−xRu x )0.8P0.2 alloys

  • C. Sürgers
  • H. v. Löhneysen


Amorphous (Mo1−xRu x )0.8P0.2 alloys (0.3≤x≤0.7) have been investigated with measurements of the specific heatC and thermal conductivity κ. Also the superconducting properties (critical temperatureT c and upper critical field) have been determined. Well belowT c , all alloys show the familiar behavior known for glasses, i.e.C∼T n and κ∼T m withn≈1 andm≈2 which is attributed to tunneling states (TLS). The largeT c allows an unambiguous determination of the coefficients ofC and κ. Compairing our data with literature data, we find no correlation between the TLS density of states and the glass temperature or crystallization temperature, as opposed to insulating glasses where such a correlation appears to exist. The unusual annealing behavior found previously in amorphous Zr−Ni and Zr−Cu, which was attributed to a change in the TLS relaxation-time spectrum, is confirmed in the present work.


Spectroscopy Neural Network Crystallization Thermal Conductivity State Physics 
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  1. 1a.
    Löhneysen, H. v.: Phys. Rep.79, 161 (1981);Google Scholar
  2. 1b.
    Black, J.L.: In: Glassy metals. Güntherodt, H.J., Beck, H. (eds.). Vol. 1, p. 161. Berlin, Heidelberg, New York: Springer 1981;Google Scholar
  3. 1c.
    Lasjaunias, J.C., Ravex, A., Laborde, O., Bethoux, O.: Physica126B, 126 (1984)Google Scholar
  4. 2.
    For a review, see Amorphous solids: low temperature properties. Phillips, W.A. (ed.). Berlin, Heidelberg, New York: Springer 1981Google Scholar
  5. 3.
    Lou, L.F.: Solid State Commun.19, 335 (1976)Google Scholar
  6. 4.
    Thomas, N., Arnold, W., Weiss, G., Löhneysen, H. v.: Solid State Commun.33, 523 (1980)Google Scholar
  7. 5.
    Samwer, K., Löhneysen, H. v.: Phys. Rev. B26, 107 (1982)Google Scholar
  8. 6.
    Cotts, A.J., Anderson, A.C., Poon, S.J.: Phys. Rev. B28, 6127 (1983)Google Scholar
  9. 7.
    Grondey, S., Löhneysen, H. v., Schink, H.J., Samwer, K.: Z. Phys. B — Condensed Matter51, 287 (1983)Google Scholar
  10. 8.
    Esquinazi, P., Cruz, M.E. de la, Ridner, A., Cruz, F. de la: Solid State Commun.44, 941 (1982)Google Scholar
  11. 9.
    Gronert, H.W., Herlach, D.M., Schröder, A., Berg, R. van den, Löhneysen, H. v.: Z. Phys. B — Condensed Matter63, 173 (1986)Google Scholar
  12. 10.
    Herlach, D.M., Gronert, H.W., Wassermann, E.F., Sander, W.: Z. Phys. B — Condensed Matter65, 353 (1987)Google Scholar
  13. 11.
    Johnson, W.L., Poon, S.J., Durand, J., Duwez, P.: Phys. Rev. B18, 206 (1978)Google Scholar
  14. 12.
    Johnson, W.L., Williams, A.R.: Phys. Rev. B20, 1640 (1979)Google Scholar
  15. 13.
    Johnson, W.L.: In: Glassy metals. Güntherodt, H.-J., Beck, H. (eds.). Vol. 1, p. 191. Berlin, Heidelberg, New York: Springer 1981Google Scholar
  16. 14.
    Tenhover, M., Johnson, W.L., Tsuei, C.C.: Solid State Commun.38, 53 (1981)Google Scholar
  17. 15.
    Albert, K., Löhneysen, H. v., Sander, W., Schink, H.J.: Cryogenics22, 417 (1982)Google Scholar
  18. 16.
    Ewert, S., Roll, U., Sander, W.: Proceedings of the International Conference on Physics on Transition Metals, Leeds 1980; Inst. Phys. Conf. Ser.55, 639 (1981)Google Scholar
  19. 17.
    Löhneysen, H. v.: In Amorphous metals and non-equilibrium processing. Allmen M. von (ed.) p. 153. Les Ulis: Les Editions de Physique 1984Google Scholar
  20. 18.
    Carter, W.L., Poon, S.J., Hull, G.W., Geballe, T.H.: Solid State Commun.39, 41 (1981)Google Scholar
  21. 19.
    Schulz, R., Mehra, M., Johnson, W.L.: J. Phys. F15, 2109 (1985)Google Scholar
  22. 20.
    Lasjaunias, J.C., Ravex, A.: J. Phys. F13, L101 (1983)Google Scholar
  23. 21.
    McMillan, W.L.: Phys. Rev.167, 331 (1968)Google Scholar
  24. 22.
    Hopkins, S.T., Johnson, W.L.: Solid State Commun.43, 537 (1982)Google Scholar
  25. 23.
    Kroeger, D.M., Koch, C.C., Scarbrough, J.O., McKamey, C.G.: Phys. Rev. B29, 1199 (1984)Google Scholar
  26. 24.
    Werthamer, N.R., Helfand, E., Hohenberg, P.C.: Phys. Rev.147, 295 (1966)Google Scholar
  27. 25.
    Coffey, L., Muttalib, K.A., Levin, K.: Phys. Rev. Lett.52, 783 (1984)Google Scholar
  28. 26.
    Poon, S.J.: Phys. Rev. B31, 7442 (1985)Google Scholar
  29. 27.
    Wong, K.M., Clegg, A.W., Drehman, A.J., Poon, S.J.: Phys. Rev. B31, 3174 (1985)Google Scholar
  30. 28.
    Löhneysen, H. v., Rüsing, H., Sander, W.: Z. Phys. B — Condensed Matter60, 323 (1985)Google Scholar
  31. 29.
    Cohen, M.H., Grest, G.S.: Solid State Commun.39, 143 (1981)Google Scholar
  32. 30.
    Reichert, U., Schmidt, M., Hunklinger, S.: Solid State Commun.57, 315 (1986)Google Scholar
  33. 31.
    Beret, J.F., Meissner, M.: (to be published)Google Scholar
  34. 32.
    Kämpf, G., Selisky, H., Buckel, W.: Physica108B, 1263 (1981)Google Scholar
  35. 33.
    Hofacker, M.: Ph. D. thesis. Rheinisch-Westfälische Technische Hochschule Aachen, 1986Google Scholar
  36. 34.
    Freed, R.L., Vander Sande, J.B.: J. Non. Cryst. Sol.27, 9 (1978)Google Scholar
  37. 35.
    Graebner, J.E., Golding, B., Schutz, R.J., Hsu, F.S.L., Chen, H.S.: Phys. Rev. Lett.39, 1480 (1977)Google Scholar
  38. 36.
    Cantrell, J.S., Wagner, J.E., Bowman, R.C. Jr.: J. Appl. Phys.57, 545 (1985)Google Scholar
  39. 37.
    Garoche, P., Johnson, W.L.: Solid State Commun.39, 403 (1981)Google Scholar
  40. 38.
    Herlach, D.M., Gronert, H.W., Wassermann, E.F.: Europhys. Lett.1, 23 (1986)Google Scholar
  41. 39.
    Lasjaunias, J.C., Ravex, A., Vandorpe, M., Hunklinger, S.: Solid State Commun.17, 1045 (1975)Google Scholar
  42. 40.
    Zimmermann, J., Weber, G.: Phys. Lett.86A, 32, (1982)Google Scholar
  43. 41.
    Vladár, K., Zawadowski, A.: Phys. Rev. B28 1564, 1582, 1596 (1983)Google Scholar
  44. 42.
    Esquinazi, P., Ritter, H.M., Neckel, H., Weiss, G., Hunklinger, S.: Z. Phys. B — Condensed Matter64, 81 (1986)Google Scholar
  45. 43.
    Parks, R. (ed.): Superconductivity, Vol. 2, p. 779. New York: Dekker 1969Google Scholar

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • C. Sürgers
    • 1
  • H. v. Löhneysen
    • 1
  1. 1.2. Physikalisches Institut der RWTH AachenFederal Republic of Germany

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