By Martin Schmidbauer

ISBN-10: 3540201793

ISBN-13: 9783540201793

ISBN-10: 3540399860

ISBN-13: 9783540399865

This monograph represents a serious survey of the exceptional services of X-ray
diffuse scattering for the structural characterization of mesoscopic fabric platforms. The mesoscopic regime contains size scales starting from a couple of as much as a few 1000's of nanometers. it truly is of specific relevance at semiconductor layer platforms the place, for instance, interface roughness or low-dimensional items corresponding to quantum dots and quantum wires have attracted a lot curiosity. an in depth assessment of the current cutting-edge conception of X-ray diffuse scattering at mesoscopic constructions is given via a worthy description of varied experimental suggestions. chosen updated examples are mentioned. the purpose of the current publication is to mix points of self-organized development of mesoscopic constructions with corresponding X-ray diffuse scattering experiments.

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Additional info for X-Ray Diffuse Scattering from Self-Organized Mesoscopic Semiconductor Structures

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61) are plotted for different values of ξ. 60). In addition to that behavior, the correlation peaks decay with increasing values of q. The intensity decay can be quantified 2 2 2 2 by an envelope function of the form (1+e−σ q /2 )/(1−e−σ q /2 ). The smaller ξ is, the stronger the decay of the correlation peaks. 57), the appearance of many orders of satellite peaks is thus a sign of high correlation. This behavior, however, is not generally valid. In Fig. 10, an SRO model where only next-neighbor interaction is present is used.

However, as will be shown in this section, it 42 2 Basic Principles of X-Ray Diffuse Scattering ˆ can be solved iteratively. 75) is divided into two parts:10 ˆ =V ˆA +V ˆB . 86) ˆ A describes the scattering by the perfect, undisturbed part The first term V ˆ of the sample. 87) can be solved exactly in the framework of dynamical theory. The second term, ˆ B , can then be regarded as a (small) perturbation of the “perfect” scattering V ˆ A . 88) where χA is the dielectric polarizability of the ideal undisturbed system and (−A) (A) δχB is the disturbance of it.

10 11 The nomenclature given in the textbook by Hol´ y et al. [13] is used here. e. the scattering cross section is invariant under time inversion (indicated by the index (−) “−”). Time inversion means that the scattered vacuum wave Es (r) illuminates (−A) (r) inside the sample in the reverse direction and creates the wave field Es the sample. 5 The Distorted-Wave Born Approximation 43 The DWBA can be described in words as follows. The incident vacuum plane wave produces a wave field inside the sample.

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X-Ray Diffuse Scattering from Self-Organized Mesoscopic Semiconductor Structures by Martin Schmidbauer

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