, Volume 42, Issue 2, pp 39–43 | Cite as

Radiation effects in magnetic and superconducting materials

  • Robert D. Brown
  • James R. Cost
Magnetic Material Research Summary


Many of the newly developed materials, such as rare-earth permanent magnets, amorphous alloys and oxide superconductors, have important applications in radiation environments. These environments can have various negative or beneficial effects on the properties, depending on the amount of radiation and the nature of material. Properties such as the critical current in superconductors can actually be increased by radiation, while critical temperature is decreased. More detailed study of the mechanisms responsible for such radiation-induced changes may lead to materials with greater stability in these challenging environments.


Domain Wall Permanent Magnet Amorphous Alloy Critical Current Density Oxide Superconductor 
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.
    M. Sagawa et al., “Permanent Magnet Materials Based on the Rare Earth-Iron-Boron Tetragonal Compounds,” IEEE Trans. Magn., MAG-20 (1984), pp. 1584–1589.Google Scholar
  2. 2.
    A. Menth, H. Nagel and R.S. Perkins, “New High-Performance Permanent Magnets Based on Rare Earth-Transition Metal Compounds,” Ann. Rev. Mater. Sci., 8 (1978), pp. 21–47.Google Scholar
  3. 3.
    M.K. Wu et al., “Superconductivity at 93 K in a New Mixed-Phase Y-Ba-Cu-O Compound System at Ambient Pressure,” Phys. Rev. Lett., 58 (1987), p. 908.Google Scholar
  4. 4.
    D.R. Olander, “Radiation Effects,” Fundamental Aspects of Nuclear Reactor Fuel Elements, ed, D.R. Olander (Tech. Info. Center, ERDA, 1976), pp. 373–417.CrossRefGoogle Scholar
  5. 5.
    K. Halbach, “Design of Permanent Multipole Magnets with Oriented Rare Earth Cobalt Material,” Nucl. Instr. and Methods, 169 (1980), pp. 1–10.Google Scholar
  6. 6.
    E.W. Blackmore, “Radiation Effects of Protons on Samarium-Cobalt Permanent Magnets,” IEEE Trans. Nucl. Sci., NS-32 (1985), pp. 3669–3671.Google Scholar
  7. 7.
    J.R. Cost and R.D. Brown, “Radiation Effects in Rare-Earth Permanent Magnets,” High Performance Ferromagnetic Materials, ed. S.G. Sankar (Pittsburgh, PA: MRS, 1987), pp. 321–327.Google Scholar
  8. 8.
    J.R. Cost, R.D. Brown, A.L. Giorgi and J.T. Stanley, “Effects of Neutron Irradiation on Nd-Fe-B Magnetic Properties,” IEEE Trans. Magn., 24 (1988), pp. 2016–2019.Google Scholar
  9. 9.
    R.D. Brown and J.R. Cost, “Radiation-Induced Changes in Magnetic Properties of Nd-Fe-B Permanent Magnets,” IEEE Trans. Magn., 25 (1989), pp. 3117–3120.Google Scholar
  10. 10.
    J.R. Cost and R.D. Brown, “Sm-Co Permanent Magnets: Effects of Fast Neutron Irradiation,” Met. Trans., in press.Google Scholar
  11. 11.
    H. Spitzer and A. Weller, “Magnetisierungsverlust von Samarium-Kobalt Permanentmagneten in hohen Neutronfeldern,” Kemsforschungsanlage Jülich Report SNQ 1 N/BH 22/05/84, May 1984.Google Scholar
  12. 12.
    R.D. Brown, J.R. Cost and J.T. Stanley, “Effects of Neutron Irradiation on Magnetic Permeability of Amorphous and Crystalline Magnetic Alloys,” J. Appl. Phys., 55 (1984), pp. 1754–1756.Google Scholar
  13. 13.
    R.D. Brown, J.R. Cost and J.T. Stanley, “Irradiation-Induced Decay of Magnetic Permeability of MetGlas 2605S-3 and Mumetal,” J. Nucl. Mater., 131 (1985), pp. 37–43.Google Scholar
  14. 14.
    J.R. Cost, “Non-Linear Regression Analysis Method for Determining Relaxation Time Spectra for Processes with First-Order Kinetics,” J. Appl. Phys., 54 (1983), pp. 2137–2146.Google Scholar
  15. 15.
    A.I. Schindler, R.H. Kernohan and J. Weertman, “Effect of Irradiation on Magnetic Properties of Fe-Ni Alloys,” J. Appl. Phys., 35 (1964), p. 2640.Google Scholar
  16. 16.
    J.R. Cost, J.O. Willis, J.D. Thompson and D.E. Peterson, “Fast-Neutron Irradiation of YBa2Cu3Ox,” Phys. Rev., B 37 (1988), pp. 1563–1568.Google Scholar
  17. 17.
    J.O. Willis, et al., “Radiation Damage in YBa2Cu3Ox by Fast Neutrons,” Mat. Res. Soc. Symp. Proc., 99 (1988), pp. 391–394.Google Scholar
  18. 18.
    A. Umezawa et al., “Enhanced Critical Magnetization Currents Due to Fast Neutron Irradiation in Single-Crystal YBa2Cu3O7-δ,” Phys. Rev. B, 36 (1987), pp. 7151–7154.Google Scholar
  19. 19.
    ST. Sekula et al., “Fast Neutron Damage Studies of La1.85Sr0.15CuO4,” Jpn. J. Appl. Phys., 26 (1987), p. 1185.Google Scholar
  20. 20.
    H. Kupfer et al., “Fast Neutron Irradiation of YBa2Cu3O7,” Z. Phys. B, 69 (1987), p. 167.Google Scholar
  21. 21.
    J.O. Willis, et al., “Proton Radiation Damage in Superconducting EuBa2Cu3Ox and GdBa2Cu3Ox,” Appl. Phys. Lett., 53 (1988), pp. 417–419.Google Scholar
  22. 22.
    C.P. Bean, “Magnetization of Hard Superconductors,” Phys. Rev. Lett., 8 (1962), p. 250.Google Scholar
  23. 23.
    A.R. Sweedler, D.E. Cox and S. Moehlecke, “Neutron Irradiation of Superconducting Compounds,” J. Nucl. Mater., 72 (1978), pp. 50–69.Google Scholar

Copyright information

© TMS 1990

Authors and Affiliations

  • Robert D. Brown
    • 1
  • James R. Cost
    • 1
  1. 1.Los Alamos National LaboratoryUSA

Personalised recommendations