Prog. Theor. Phys. Vol. 66 No. 2 (1981) pp. 721-724

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Letters

Critical Dynamics of Longitudinal Component in Ordered Spin System

Riichiro Shirota, Kazumasa Miyake, Masakazu Ito and Kazuo Yamada

Department of Physics, Nagoya University, Nagoya 464

(Received May 11, 1981)

Abstract:

Dynamical susceptibility of the longitudinal component, χ_L(q, ω), in XY-and its generalized system is calculated below the critical point, using the ε-expansion method in the renormalization group theory. In the limit of long-wavelength, χ_L(0, ω) has the ω-dependence ω^-ε(ε=4-d), which means the long-time-tail, not exponential decay.

URL : http://ptp.ipap.jp/link?PTP/66/721/
DOI : 10.1143/PTP.66.721

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Citing Article(s) :

Progress of Theoretical Physics Vol. 68 No. 6 (1982) pp. 1841-1853 :
Dynamics of Longitudinal Component in Ordered Spin Systems

Riichiro Shirota, Kazumasa Miyake, Masakazu Ito and Kazuo Yamada