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Temperature-dependent forbidden resonant x-ray scattering in zinc oxide

DOI: 10.1103/PhysRevB.68.064110 DOI Help

Authors: S. Collins (Diamond Light Source) , D. Laundy (Daresbury, Laboratory, U.K) , V. Dmitrienko (Institute of Crystallography, Russia) , D. Mannix (ESRF, Framce) , P. Thompson (ESRF, France)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 68 (6)

State: Published (Approved)
Published: August 2003

Abstract: We have measured the resonance spectrum of glide-plane forbidden x-ray diffraction in hexagonal ZnO as a function of temperature. This is the only method to observe deformations of the electronic states caused by thermal atomic motion. The results provide the first evidence for a complex line shape in the spectrum of thermal-motion-induced scattering and the first observation of a dramatic change in resonance spectrum with temperature. The measurements are in agreement with a phenomenological model, based on a combination of constant (most probably dipole-quadrupole) and temperature-dependent amplitudes. This model provides a means of separating the two components, including their relative phase.

Subject Areas: Physics

Facility: ESRF