CIRCULAR-DICHROISM IN CORE-LEVEL EMISSION FROM O W(110) - EXPERIMENT AND THEORY/

Circular dichroism has been observed in the photoelectron diffraction of chemically shifted W 4f photoelectrons from the W(110)1 X 1-O surfa ce. The diffraction peaks from first-layer W atoms bonded most directl y to oxygen showed an azimuthal rotation similar to those reported in a prior experiment on Si(001). The maximum rotation angles are also in good agreement with those calculated using the formula Delta phi = m/ kR sin(2) theta derived previously by Daimon et al. [Jpn. J. Appl. Phy s., Part 2 32, L1480 (1993)] and assuming m = 4, which is the maximum magnetic quantum number of the photoelectron wave function. [S0163-182 9(98)05139-X].