Weak Ferromagnetism in Superconducting ErNi2B2C

  • H. Kawano-Furukawa
Part of the NATO Science Series book series (NAII, volume 14)


We review our recent studies on ErNi2B2C, in which a microscopic coexistence of weak ferromagnetism (WFM) and superconductivity was confirmed for the first time by polarized neutron diffraction measurements. A detailed spin arrangement of ferromagnetic (FM) components is also discussed based on the results of unpolarized neutron diffraction experiments. Furthermore, we found that a temperature dependence of the lower critical field H Cr shows a clear upturn at the WFM ordering temperature, which indicates a cooperative interplay between FM and superconductivity. Finally, we shall discuss a possibility of a realization of a spontaneous vortex phase in this system.


Neutron Diffraction Spin Density Wave Weak Ferromagnetism Meissner Effect Neutron Diffraction Experiment 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    J. W. Lynn et. al., Phys. Rev. B. 55, 6584 (1997).ADSCrossRefGoogle Scholar
  2. 2.
    H. Eisaki et. al., Phys. R.ev. B. 50, 647 (1994).ADSCrossRefGoogle Scholar
  3. 3.
    For a review, see O. Fischer, Ferromagnetic Materials (Vol. 5, Eds. K. H. J. Buschow and E. P. Wohlfarth, Holland, Amsterdam, 1990).Google Scholar
  4. 4.
    V. L. Ginzburg, Soviet Phys. JETP 4, 153 (1957).MATHGoogle Scholar
  5. 5.
    P. C. Ganfleld et. al., Physica C 262, 249 (1996).ADSCrossRefGoogle Scholar
  6. 6.
    H. Kawano et al., J. Phys. Chem. Solids 60, 1053 (1999).ADSCrossRefGoogle Scholar
  7. 7.
    H. Kawano-Furukawa et al., submitted to PRL.Google Scholar
  8. 8.
    H. Takeya et al., Physica C 256, 220 (1996); J. Mag. Mag. Mater. 157/158, 661 (1996); J. Alloys Compounds 245 94, (1996)ADSCrossRefGoogle Scholar
  9. 9.
    G. E. Bacon, Neutron Diffraction, 3rd ed. (Clarendon Oxford, 1975).Google Scholar
  10. 10.
    T. Siegrist et al., Nature 367, 254 (1994).ADSCrossRefGoogle Scholar
  11. 11.
    C. Detlefs et al., Phys. Rev. B 56, 7843 (1997).ADSCrossRefGoogle Scholar
  12. 12.
    J. Zarestky et al., Phys. Rev. B 51, R.678 (1995).ADSCrossRefGoogle Scholar
  13. 13.
    S. K. Sinha et al., Phys. Rev. B 51, R.681 (1995).ADSCrossRefGoogle Scholar
  14. 14.
    T. K. Ng and C. M. Varma, Phys. Rev. Lett. 78, 330 (1997).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • H. Kawano-Furukawa
    • 1
    • 2
  1. 1.Department of PhysicsOchanomizu UniversityBunkyo-kuJapan
  2. 2.PRESTOJapan Science and Technology CorporationKawaguchiJapan

Personalised recommendations