The near edge structure of a-As2S3 and pressure-induced changes

✍ Scribed by G. Pfeiffer; J.J. Rehr; D.E. Sayers

• Book ID: 103939808
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 146 KB
• Volume: 208-209
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)01034-x

✦ Synopsis

The characteristic changes in the As K-edge X-ray absorption fine structure of As2S 3 induced by hydrostatic pressure are examined in detail. The near edge structure is resolved into the continuum structure and a bound state resonance located approx. 6 eV below the continuum threshold. Under pressure, the bound state resonance is broadened and more importantly, the first shoulder in the continuum edge structure is lowered and shifted to higher energy. Simple first shell compression is not sufficient to explain the experimental data.