High-resolution X-ray study of specular and diffuse scattering from Ni/C multilayer upon annealing

Chernov, V. A.; Chkhalo, E.D; Коваленко, Н. В.; Mytnichenko, S.V.

doi:10.1016/s0168-9002(99)00741-x

Cited by 13 publications

(6 citation statements)

References 12 publications

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“…Thus, the use of a conventional experimental technique with the integration of diffuse-scattering intensity over q y provides the fact that the value of Áq z depends weakly on q x and is approximately the same as for the case of specular Bragg re¯ection. This effect was observed repeatedly for small-angle Bragg re¯ection from multilayers (Gullikson et al, 1997;Chernov et al, 2000).…”

Section: Quasi-bragg Diffuse Scatteringmentioning

confidence: 54%

The fine structure of X-ray diffuse scattering in the vicinity of high-angle superlattice Bragg reflections

et al. 2003

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Triple‐axis X‐ray diffractometry was used to study diffuse scattering from an AlAs/GaAs superlattice grown on an [001]‐oriented GaAs substrate by molecular beam epitaxy. Reciprocal‐space maps were obtained around the 002 reflection from the superlattice and its low‐angle first‐order satellite. The data obtained reveal quasi‐Bragg diffuse‐scattering sheets caused by conformal behavior of interfacial roughness as well as amplification of diffuse scattering when the incoming or outgoing angle is nearly equal to the Bragg angle of the superlattice or substrate. The observed features of diffuse‐scattering fine structure are explained within the framework of the distorted‐wave Born approximation. Nevertheless, this approximation is shown to be incorrect for quantitative analysis of diffuse scattering. In particular, the observed domination in intensity of the incoming Bragg features over the outgoing ones is shown to reflect the decay rate of the coherent X‐ray field through the diffuse‐scattering channel, which is not negligible relative to the coherent diffraction.

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Section: Quasi-bragg Diffuse Scatteringmentioning

confidence: 54%

The fine structure of X-ray diffuse scattering in the vicinity of high-angle superlattice Bragg reflections

et al. 2003

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“…Nevertheless, in the experiment we have repeatedly observed the violation of the reciprocity principle [3][4][5]. The main reason of this violation can be well illustrated by the following.…”

mentioning

confidence: 60%

“…The complete description of this experiment can be found in Ref. [3]. The vertical streaks in the maps correspond to the specular and quasi-specular scattering.…”

mentioning

confidence: 99%

Decoherence phenomenon in X-ray diffraction and scattering from rough multilayers

Chernov

Kondratiev

Коваленко

et al. 2005

Physica B: Condensed Matter

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Section: B Lateral Correlation: Domainsmentioning

confidence: 99%

“…Conversely, the resonant Mössbauer medium is absorptive and gyrotropic and reciprocity can not be proved to hold in general. 46,59 In fact, the violation of reciprocity in scattering on absorptive and grotropic media is still the subject of both experimental 61,63,64 and theoretical 46,62 works. 60 Nevertheless, for the special case under discussion, when all hyperfine magnetic fields are aligned parallel/antiparallel to the wave vector, one may verify that reciprocity exactly holds.…”

Section: B Lateral Correlation: Domainsmentioning

confidence: 99%

Perturbative theory of grazing-incidence diffuse nuclear resonant scattering of synchrotron radiation

et al. 2007

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Theoretical description of off-specular grazing-incidence nuclear resonant scattering of synchrotron radiation (Synchrotron Mössbauer Reflectometry, SMR) is presented. The recently developed SMR, similarly to polarized neutron reflectometry (PNR), is an analytical tool for the determination of isotopic and magnetic structure of thin films and multilayers. It combines the sensitivity of Mössbauer spectroscopy to hyperfine interactions and the depth selectivity of x-ray reflectometry. Specular reflection provides information on the depth profile, while off-specular scattering on the lateral structure of scattering layers. Off-specular SMR and PNR intensity formulae of a rather general multilayer with different domains, based on a Distorted Incident-Wave Approximation (DIWA) are presented. The Distorted-Wave Born Approximation (DWBA) results are given in an Appendix. Physical and numerical implications, why using DIWA, are explained.The temporal character of SMR imposes specific differences between SMR and PNR. In order to reveal the limits of DIWA and to compare the two analytical methods, two-dimensional diffuse SMR and PNR maps of an antiferromagnetic multilayer are calculated and critically compared.

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High-resolution X-ray study of specular and diffuse scattering from Ni/C multilayer upon annealing

Cited by 13 publications

References 12 publications

The fine structure of X-ray diffuse scattering in the vicinity of high-angle superlattice Bragg reflections

The fine structure of X-ray diffuse scattering in the vicinity of high-angle superlattice Bragg reflections

Decoherence phenomenon in X-ray diffraction and scattering from rough multilayers

Perturbative theory of grazing-incidence diffuse nuclear resonant scattering of synchrotron radiation

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