Skip to main content Accessibility help
×
Home

Influence of Radiation Damage and Isochronal Annealing on the Magnetic Susceptibility of Pu1-xAmx Alloys

  • Scott K McCall (a1), Michael J Fluss (a2), Brandon W. Chung (a3) and Richard G. Haire (a4)

Abstract

Results of radiation damage in Pu and Pu1-xAmx alloys studied with magnetic susceptibility, χ(T), and resistivity are presented. Damage accumulated at low temperatures increases χ(T) for all measured alloys, with the trend generally enhanced as the lattice expands. There is a trend towards saturation observable in the damage induced magnetic susceptibility data. that is not evident in similar damage induced resistivity data taken on the same specimen. A comparison of isochronal annealing curves measured by both resistivity and magnetic susceptibility on a 4.3at% Ga stabilized δ-Pu specimen show that Stage I annealing, where interstitials begin to move, is largely transparent to the magnetic measurement. This indicates that interstitials have little impact on the damage induced increase in the magnetic susceptibility. The isochronal annealing curves of the Pu1-xAmx alloys do not show distinct annealing stages as expected for alloys. However, samples near 20% Am concentration show an unexpected increase in magnetization beginning when specimens are annealed to 35K. This behavior is also reflected in a time dependent increase in the magnetic susceptibility of damaged specimens indicative of first order kinetics. These results suggest there may be a metastable phase induced by radiation damage and annealing in Pu1-xAmx alloys.

Copyright

References

Hide All
[1] Kanellakopulos, B. et al. , Sol St Comm 17, 713 (1975).10.1016/0038-1098(75)90392-0
[2] Kubota, A. et al. , Journal of Computer-Aided Materials Design 14, 367 (2007).
[3] McCall, S. K. et al. , Proc. Natl. Acad. Sci. U. S. A. 103, 17179 (2006).
[4] Lashley, J. C. et al. , JOM-Journal of the Minerals Metals & Materials Society 55, 34 (2003).
[5] Trainor, R. J. Brodsky, M. B. and Culbert, H. V. Phys. Rev. Lett. 34, 1019 (1975).
[6] Lashley, J. C. et al. , Phys. Rev. B 72, 054416 (2005).
[7] McCall, S. K. et al. , J. Alloys Compd. 444-445, 168 (2007).
[8] Fluss, M. J. et al. , J. Alloys Compd. 368, 62 (2004).10.1016/j.jallcom.2003.08.080
[9] McCall, S. K. et al. , in Materials Research Society Fall Meeting 2006, edited by Blobaum, K. J. M. Boston MA, 2007), Vol. 986, p. 0986.
[10] Pauw, L. J. van der, Philips Technical Review 20, 220 (1958).
[11] Wigley, D. A. Proc. R. Soc. London, A 284, 344 (1965).
[12] Yagi, E. et al. , Phys. Rev. B 38, 3189 (1988).
[13] Soderlind, P. and Sadigh, B. Phys. Rev. Lett. 92, 185702 (2004).
[14] Soderlind, P. Landa, A. and Sadigh, B. Phys. Rev. B 66, 205109 (2002).
[15] Savrasov, S. Y. and Kotliar, G. Phys. Rev. Lett. 84, 3670 (2000).
[16] Savrasov, S. Y. Kotliar, G. and Abrahams, E. Nature 410, 793 (2001).
[17] Bouchet, J. et al. , J. Phys.: Condens. Matter 12, 1723 (2000).
[18] Shorikov, A. O. et al. , Phys. Rev. B 72, 024458 (2005).
[19] Shick, A. B. Drchal, V. and Havela, L. Europhys. Lett. 69, 588 (2005).
[20] Heffner, R. H. et al. , Phys. Rev. B 73, 094453 (2006).
[21] Lashley, J. C. et al. , Phys. Rev. Lett. 91, 205901/1 (2003).10.1103/PhysRevLett.91.205901
[22] Clogston, A. M. et al. , Physical Review 125, 541 (1962).
[23] Bozorth, R. M. et al. , Physical Review 122, 1157 (1961).
[24] Hill, H. H. et al. , Physica 55, 615 (1971).
[25] Mendels, P. et al. , Europhys. Lett. 46, 678 (1999).
[26] Bobroff, J. et al. , Phys. Rev. Lett. 83, 4381 (1999).
[27] Rullier-Albenque, F., Alloul, H. and Tourbot, R. Phys. Rev. Lett. 91, 047001 (2003).
[28] Rubia, T. Diaz de la et al. , Journal of Computer-Aided Materials Design 5, 243 (1998).
[29] Lee, J. A. Mendelssohn, K. and Wigley, D. A. Phys. Lett. A 1, 325 (1962).
[30] Mortimer, M. J. Marples, J. A. C. and Lee, J. A. Int. Met. Rev. 20, 109 (1975).
[31] Elliott, R. O. Olsen, C. E. and Vineyard, G. H. Acta Metal. 11, 1129 (1963).10.1016/0001-6160(63)90040-3

Keywords

Influence of Radiation Damage and Isochronal Annealing on the Magnetic Susceptibility of Pu1-xAmx Alloys

  • Scott K McCall (a1), Michael J Fluss (a2), Brandon W. Chung (a3) and Richard G. Haire (a4)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed