Extremely asymmetric diffraction as a method of determining magneto-optical constants for X-rays near absorption edges

Journal Article · Mon Jun 15 00:00:00 EDT 2015 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S106377611505009X· OSTI ID:22472227

Smekhova, A. G. ^[1]; Dumesnil, K. ^[2]; Wilhelm, F.; Rogalev, A. ^[3]

---

1. Moscow State University (Russian Federation)
2. University of Lorraine, Institut Jean Lamour (UMR CNRS 7198) (France)
3. European Synchrotron Radiation Facility (France)

The spectral dependence of the Bragg peak position under conditions of extremely asymmetric diffraction has been analyzed in the kinematical and dynamical approximations of the diffraction theory. Simulations have been performed for the L{sub 3} absorption edge of yttrium in a single-crystal YFe{sub 2} film; they have shown that the magneto-optical constants (or, equivalently, the dispersion corrections to the atomic scattering factor) for hard X-rays can be determined from this dependence. Comparison with the experimental data obtained for a Nb(4 nm)/YFe{sub 2}(40 nm〈110〉)/Fe(1.5 nm)/Nb(50 nm)/sapphire sample at the European Synchrotron Radiation Facility has been made.

• OSTI ID: 22472227
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 120, Issue 6; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
BRAGG CURVE
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CORRECTIONS
DIFFRACTION
EUROPEAN SYNCHROTRON RADIATION FACILITY
FILMS
HARD X RADIATION
IRON ALLOYS
MONOCRYSTALS
SAPPHIRE
YTTRIUM
YTTRIUM ALLOYS