NEXAFS experiment and multiple scattering calculations onKO2:Effects on the π resonance in the solid phase | Zendy

M. Pedio | Zendy; Z. Y. Wu | Zendy; M. Benfatto | Zendy; A. Mascaraque | Zendy; E. G. Michel | Zendy; C. Ottaviani | Zendy; C. Crotti | Zendy; M. Peloi | Zendy; M. Zacchigna | Zendy; C. Comicioli | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

NEXAFS experiment and multiple scattering calculations onKO2:Effects on the π resonance in the solid phase

Author(s) -

M. Pedio,

Z. Y. Wu,

M. Benfatto,

A. Mascaraque,

E. G. Michel,

C. Ottaviani,

C. Crotti,

M. Peloi,

M. Zacchigna,

C. Comicioli

Publication year - 2002

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.66.144109

Subject(s) - xanes , scattering , ion , physics , absorption (acoustics) , crystallography , resonance (particle physics) , atomic physics , ionic bonding , materials science , molecular physics , spectral line , chemistry , optics , quantum mechanics

The high-energy resolution O K-edge absorption near-edge x-ray absorption fine structure spectrum has been measured for in situ prepared potassium superoxide. The experimental data have been analyzed in detail by multiple scattering calculations using self-consistent field potentials. In particular, the so-called π resonance at the rising edge, which presents a double-peak structure, has been totally resolved and reproduced by the calculations. This analysis indicates that the grown material is arranged in a KO_2 structure with an O-O distance between 1.31 and 1.34 Angstrom. Moreover, the calculation demonstrates both a complete ionic character of the bound between the Oˆ(2-) anion and K atoms and a strong interaction between the anion and solid-state matrices

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research