Amorphous samples of Se, SSe 40 , SSe 30 and SSe 10 were prepared as bulk glasses by air quenching.The structural properties of these samples were studied applying X-ray diffraction using Cu-k α radiation.The RDF analysis of the short range order (SRO), revealed no significant change in the bond length of the Se-Se pairs upon S substitution.The second nearest neighbor suffered a systematic increas...
Amorphous samples of Se, SSe 40 , SSe 30 and SSe 10 were prepared as bulk glasses by air quenching.The structural properties of these samples were studied applying X-ray diffraction using Cu-k α radiation.The RDF analysis of the short range order (SRO), revealed no significant change in the bond length of the Se-Se pairs upon S substitution.The second nearest neighbor suffered a systematic increas...
The local atomic order of an amorphous Se0.90S0.10 alloy produced by mechanical alloying was studied by x-ray diffraction and extended x-ray absorption fine structure (EXAFS) data obtained at three temperatures, T = 300, 200 and 30 K. From the cumula...