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Prog. Theor. Phys. Vol. 73 No. 2 (1985) pp. 361-366
Renormalized Field Theory of Random Magnetic Mixtures with Competing Spin Anisotropies. II
Harukazu Igarashi and
Michiyoshi Oku
Department of Pure and Applied Sciences, University of Tokyo, Komaba, Tokyo 153
(Received November 5, 1984)
Abstract:
Fixed points of β functions and eigenvalues of B matrix in Part I are computed in Part II. It is confirmed that all 256 fixed points in the nonsymmetric XY-Ising like mixtures are shown to be infrared unstable, and that 128 fixed points in the nonsymmetric Ising-Ising like mixtures, among which 8 fixed points are “runaway solutions”, become unstable. It is concluded that tetracritical points in the studied magnetic systems are not of second-order.
URL :
http://ptp.ipap.jp/link?PTP/73/361/
DOI : 10.1143/PTP.73.361
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