Author/Authors :
Camarero، نويسنده , , J. and Ni?o، نويسنده , , M.A. and Far??as، نويسنده , , D. and Cros، نويسنده , , V. and de Miguel، نويسنده , , J.J. and Miranda، نويسنده , , R. and Hernando-Ma?eru، نويسنده , , A. and Asenjo، نويسنده , , A. and Gonz?lez، نويسنده , , J.M. and Vazquez، نويسنده , , M.، نويسنده ,
Abstract :
A magnetic superlattice has been prepared on Cu(1 1 1) using a surfactant (Pb) to enhance layer-by-layer growth and codepositing Co and Cu within the magnetic layers, which consist thus of small, nearly superparamagnetic Co aggregates within a Cu matrix. This procedure helps to maintain the fcc phase of Co, producing well-defined interfaces with a negligible accumulation of roughness during growth. Our magnetic measurements on this sample reveal a spin-glass-like behaviour, and demonstrate the validity of this method to produce samples with controlled properties.
Keywords :
Metal–metal magnetic heterostructures , Cobalt , Copper , Molecular Beam Epitaxy , Magnetic measurements
