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Anomalous critical spin dynamics in Gd: A revision

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)
We report a correction of the Curie temperature, T/sub c/, for our Moessbauer study of critical spin dynamics in Gd /sup 161/Dy. The revised T/sub c/ value, which is 0.4 K lower than previously reported, leads to spin-correlation times that diverge with an exponent w = 0.49(5). Though based on a well-defined power law over reduced temperatures 10/sup -3/ < t < 10/sup -1/, this result remains anomalous: It agrees neither with the predictions for the Heisenberg model nor with those for the Ising model.
Research Organization:
Department of Physics, Clark University, Worcester, Massachusetts 01610
OSTI ID:
6067807
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:7; ISSN PRBMD
Country of Publication:
United States
Language:
English