MAGNETIZATION AND UNIVERSAL SUBCRITICAL BEHAVIOR IN 2-DIMENSIONAL XY MAGNETS
S. T. Bramwell, Pcw Holdsworth
Layered magnets, considered to be experimental realizations of the 2D XY model, have a magnetization with a characteristic exponent beta = 0.23. We show, using modified renormalization group equations, that this value of beta is a universal signature of finite-sized 2D XY behaviour. We present simulation data in agreement with both the calculation and the experimental observations.
•Jan 25, 1993•0 citations