Hyperfine Interactions

, Volume 31, Issue 1–4, pp 81–86 | Cite as

μ+SR study of vacancies in thermal equilibrium in ferromagnets

  • K. Fürderer
  • K.-P Döring
  • M. Gladisch
  • N. Haas
  • D. Herlach
  • J. Major
  • H. -J. Mundinger
  • J. Rosenkranz
  • W. Schäfer
  • L. Schimmele
  • M. Schmolz
  • W. Schwarz
  • A. Seeger
Muon and Pion Sites

Abstract

Muon spin precession frequencies and transverse relaxation rates have been measured on demagnetized iron, cobalt, and FeCo alloys (3 at%–50 at% Co) between room temperature and the Curie temperatureTc. The increase of the relaxation rate in iron between 930 K and 1010 K could be quantitatively attributed to the trapping of positive muons by vacancies in thermal equilibrium, resulting in an enthalpy of monovacancy formation ofH 1V F =(1.7±0.1) eV. the smallest vacancy concentrations detected are = 10−8.

Keywords

Iron Thin Film Enthalpy Cobalt Relaxation Rate 

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Copyright information

© J.C. Baltzer A.G., Scientific Publishing Company 1986

Authors and Affiliations

  • K. Fürderer
    • 1
  • K.-P Döring
    • 2
  • M. Gladisch
    • 3
  • N. Haas
    • 1
  • D. Herlach
    • 2
  • J. Major
    • 2
  • H. -J. Mundinger
    • 3
  • J. Rosenkranz
    • 3
  • W. Schäfer
    • 3
  • L. Schimmele
    • 1
  • M. Schmolz
    • 1
  • W. Schwarz
    • 3
  • A. Seeger
    • 1
    • 2
  1. 1.Institut für PhysikMax-Planck-Institut für MetallforschungStuttgart 80Fed. Rep. of Germany
  2. 2.Institut für Theoretische und Angewandte PhysikUniversität StuttgartStuttgart 80Fed. Rep. of Germany
  3. 3.Physikalisches InstitutUniversität HeidelbergHeidelberg 1Fed. Rep. of Germany

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