Comment on 'Migdal renormalisation group approach to quantum spin systems'
- 14 December 1979
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 12 (23) , L909-L913
- https://doi.org/10.1088/0022-3719/12/23/008
Abstract
(See Suzuki and Takano, Phys. Lett. Vol.A, vol.69A, no.6, p.426, 1979). It is shown that recently proposed recursions for the spin-1/2 Heisenberg model lead to spurious behaviour when the anisotropy is XY-like, and that the results for the isotropic case depend very strongly on the length scale change factor.Keywords
This publication has 4 references indexed in Scilit:
- Renormalisation group calculations for the dilute Heisenberg magnetJournal of Physics C: Solid State Physics, 1979
- Migdal renormalization group approach to quantum spin systemsPhysics Letters A, 1979
- Notes on Migdal's recursion formulasAnnals of Physics, 1976
- Crossover scaling functions for exchange anisotropyPhysical Review B, 1974