Decreasing of superparamagnetic clusters in |Co/Cu(111)|n - I. N. Lukienko; N. F. Kharchenko; V. M. Khrustalev; V. N. Savitskij; A. V. Fedorchenko; V. A. Desnenko; A. N. Stetsenko; V. V. Zorchenko (Low Temperature Physics, 2012)