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oai:docta.ucm.es:20.500.14352/593782023-08-27T06:27:15Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Domínguez-Adame Acosta, Francisco author Maciá Barber, Enrique Alfonso author 1995-04-10 We have numerically computed the reflectivity of X-rays incident normally onto Fibonacci multilayers, and compared the results with those obtained in periodic approximant multilayers. The constituent layers are of low and high refractive indices with the same thickness. Whereas the reflectivity of periodic approximant multilayers changes only slightly with increasing the number of layers, Fibonacci multilayers present a completely different behaviour. In particular, we have found a highly fragmented and self-similar reflectivity pattern in Fibonacci systems. The behaviour of the fragmentation pattern on increasing the number of layers is quantitatively described using multifractal techniques. We end with a brief discussion on possible practical applications of our results in the design of new X-ray devices. 0375-9601 10.1016/0375-9601(95)00170-8 https://hdl.handle.net/20.500.14352/59378 http://dx.doi.org/10.1016/0375-9601(95)00170-8 http://www.sciencedirect.com http://arxiv.org/abs/cond-mat/9502064 X-Ray reflectivity of fibonacci multilayers