Browsing Geldart, Wally by Subject "Heisenberg model"

Now showing items 1-2 of 2

  • Effect of finite mean free path on spin-flip scattering rates near the critical point of magnetically ordered systems 

    Geldart, D. J. W., and K. De'Bell. 1985. "Effect of finite mean free path on spin-flip scattering rates near the critical point of magnetically ordered systems." Physical Review B (Condensed Matter) 32(5): 3285-8. Copyright © 1985 American Physical Society.
    The finite electron mean free path of conduction electrons is found to play an important role in determining spin-flip scattering rates, 1/sf, near a magnetic critical point. Small-momentum-transfer processes are suppressed ...

  • Universal correction to scaling amplitude ratios for inhomogeneous ferromagnets with continuous symmetry 

    Kyriakidis, J., and D. J. W. Geldart. 1996. "Universal correction to scaling amplitude ratios for inhomogeneous ferromagnets with continuous symmetry." Physical Review B (Condensed Matter) 53(17): 11572-81. Copyright © 1996 American Physical Society.
    Critical exponents and amplitude ratios for corrections to the scaling limit are calculated for a randomly diluted, weakly inhomogeneous O(m) Heisenberg model in an expansion in =4-d. Calculations for the exponents and ...