Short-distance expansion for the spin-spin correlation function of uniaxial dipolar systems
Fujiki, N. M.
Geldart, D. J. W.
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Motivated by recent work on the critical resistivity of gadolinium, a detailed study has been made of the temperature dependence of the two-point vertex function in the large-momentum regime. The operator-project expansion is used to calculate the temperature dependence in uniaxial systems at their critical dimension. Explicit forms are presented for systems with short-range interactions and with dipolar interactions
Fujiki, N. M., K. De'Bell, and D. J. W. Geldart. 1992. "Short-distance expansion for the spin-spin correlation function of uniaxial dipolar systems." Physical Review B (Condensed Matter) 45(9): 4686-94. Copyright © 1992 American Physical Society.