Abstract
Scattering of x-rays or neutrons at grazing angles is studied for semi-infinite systems which exhibit a second order phase-transition in the bulk. We present the results of a calculation to order ɛ2 (ind=4-ε dimensions) of the amplitudes of leading and next-to-leading terms in the angular dependence and in the temperatur dependence (forT>T c) of the scattering cross-section. The results are discussed for the three-dimensional Ising case.
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This work was supported by Bundesministerium für Forschung und Technologie
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Gompper, G. Universal amplitudes for critical surface scattering. Z. Physik B - Condensed Matter 62, 357–366 (1986). https://doi.org/10.1007/BF01313459
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DOI: https://doi.org/10.1007/BF01313459