Abstract:The local structures of Hf-O-N thin films were analyzed using an extended X-ray absorption fine structure (EXAFS) study on Hf L III -edge and first-principles calculations. Depending on their composition and atomic configurations, Hf 4 O 8 (CN: 7.0), Hf 4 O 5 N 2 (CN: 6.25) and Hf 4 O 2 N 4 (CN: 5.5) were suggested as the local structures of Hf-O-N thin films. The optical band gaps of Hf-O-N thin films were compared with the calculated band gap. And to investigate the optical absorption, the effects of film co… Show more
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