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Compton scattering and photo-absorption studies of charge and spin density

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Brahmia, Abdelbaki (1991) Compton scattering and photo-absorption studies of charge and spin density. PhD thesis, University of Warwick.

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Official URL: http://webcat.warwick.ac.uk/record=b3226488~S15

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Abstract

Directional Compton profiles of zinc and Feo.j5-Vio.75 have been measured with 60 keV and 412 keV gamma-rays, and the results compared with the self consistent Korringe-Kohn-Rostoker Coherent-Potential Approximation (KKR-CPA) for the iron nickel alloy. The other investigations reported all involve the use of the synchrotron radiation; the polarisation of synchrotron radiation has been established for the SRS W9.4 line, for energies of the order of 50-65 keV, and good agreements with the theoretical calculations were obtained.

The isotropic spin dependent Compton profile of gadolinium and directional spin dependent Compton profile of nickel have been measured for the first time using the inclined view method of extracting circular polarisation of synchrotron radiation. The existence of the spin dependent photo-absorption terms in the absorption coefficient have been established experimentally for iron and nickel, and compared with the first principles spin polarised
band calculation.

Item Type: Thesis or Dissertation (PhD)
Subjects: Q Science > QC Physics
Library of Congress Subject Headings (LCSH): Compton effect, Synchrotron radiation, Synchrotron radiation, Photons -- Scattering
Official Date: August 1991
Dates:
DateEvent
August 1991UNSPECIFIED
Institution: University of Warwick
Theses Department: Department of Physics
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Cooper, Malcolm, 1944-
Format of File: pdf
Extent: xi, 120, [12] leaves : illustrations
Language: eng

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