Roughening transition on Cu(113): A quantitative analysis of new experimental results

From an analysis of the peak shapes in helium-diffraction experiments on Cu(113), the roughening transition temperature is estimated to be 720±50 K. From fits to the experimental results of Monte Carlo data on various models, particularly on a terrace-step-kink model, effective energies for the creation of a kink on a step, $W_0$, and for the interaction between steps, $W_n$, are obtained as $W_0$=800±50 K and $W_n$=560±50 K.