Formation of Defects in Near-Surface Region over Li or Mn-Doped MgO Studied by Mg KEdge XANES

The near-surface region of Li or Mn-doped Mg was characterized by Mg K-edge XANES spectroscopy. The oxygen defects were formed in near-surface region when the content of Li or Mn ion is relatively low. The amount of the defects in near-surface region does not depend on the crystallinity.