Advertisement

Evidence for Phonon Scattering by Magnetic Two-Level Systems in Crystalline Spin-Glass EuxSr1−xS

  • C. Arzoumanian
  • B. Salce
  • A. M. de Goër
  • F. Holtzberg
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 51)

Abstract

During the last years, different experiments have given evidence for the spin-glass properties of the insulating system EuxSrl−xS and the phase diagram is well known [1]. Recently, we have measured the low-temperature thermal conductivity K(T) of a x = 0.44 single crystal, and studied the effect of a magnetic field up to 7 T in the temperature range below 1 K [2]. For this concentration, spin-glass behaviour is observed below the low-frequency freezing temperature Tg° = 1.8 K [3]. From this study, we have suggested that the thermal phonons are resonantly scattered by low-lying magnetic excitations or “magnetic TLS” by analogy with the properties of structural glasses [2]. We report here additional magneto thermal conductivity measurements carried out to test this hypothesis.

Keywords

Phonon Scattering Structural Glass Magnetic Field Effect Magnetic Scattering Yorktown Height 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H. MALETTA, W. FELSCH: Z. Phys. B37 (1980) 55Google Scholar
  2. 2.
    C. ARZOUMANIAN, A.M. DE GOER, B. SALCE, F. HOLTZBERG: J.Phys. Lettres 44, (1983) L-39CrossRefGoogle Scholar
  3. 3.
    F. HOLTZBERG, T.L. FRANCAVILLA, C.Y. HUANG, J.L. THOLENCE: J. Appl. Phys. 53, (3) (1982) 2229CrossRefADSGoogle Scholar
  4. 4.
    F. HOLTZBERG, J.L. THOLENCE, R. TOURNIER: in Amorphous Magnetism II, eds. R.A. Levy, R.J. Hasegawa (1977) p. 155CrossRefGoogle Scholar
  5. 5.
    G.V. LECOMTE, H.V. LOHNEYSEN, M. ZINN: to be publishedGoogle Scholar
  6. 6.
    D. MESCHEDE, F. STEGLICH, W. FELSCH, H. MALETTA, W. ZINN: Phys. Rev. Lett. 44 (1980) 102CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • C. Arzoumanian
    • 1
  • B. Salce
    • 1
  • A. M. de Goër
    • 1
  • F. Holtzberg
    • 2
  1. 1.Centre d’Etudes Nucléaires de GrenobleGrenoble CedexFrance
  2. 2.IBMYorktown Heights YorktownUSA

Personalised recommendations