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The amorphous structure of (Ga2Se3)0.25(GeSe2)0.75 is investigated using a combination of anomalous X-ray scattering (AXS) and Reverse-Monte-Carlo (RMC) modeling. It was confirmed that the Ga and Ge atoms can be found exclusively in the tetrahedral configuration. The average coordination number of the Se atoms is found to be 2.34(3) due to the presence of dative bonds. The formation of Ga/Ge-Ga/Ge so-called “wrong bonds” is discussed based on a set of RMC simulations. A strong Ga-Ga second neighbor correlations indicates the formation of Ga-Se clusters within the Ga-Ge-Se glass., Amorfní struktura (Ga2Se3)0.25(GeSe2)0.75 je zkoumána kombinací anomalního rentgenového rozptylu (AXS) a modelováním pomocí reverzního Monte-Carla (RMC). Bylo potvrzeno, že Ga a Ge atomy existují exkluzivně v tetraedrické konfiguraci. Průměrné koordinační číslo atomů Se je 2.34(3) kvůli přítomnosti dativních vazeb. Tvorba Ga/Ge-Ga/Ge takzvaných „homopolárních vazeb“ je diskutována pomocí RMC simulací. Silná korelace Ga-Ga v druhé koordinační sféře naznačuje tvorbu Ga-Se klastrů uvnitř Ga-Ge-Se skla.

Core-level photoemission spectroscopy and anomalous x-ray scattering (AXS) measurements were performed for the Pd42.5Ni7.5Cu30P20 (PNCP) excellent metallic glass to investigate the chemical nature and local atomic structure, and the results were compared to those in Pd40Ni40P20 and Pd40Cu40P20. The P 2p core levels clearly separate into two states, indicating that the P atoms have two different chemical sites, which is a strong experimental proof for the existence of an elastic inhomogeneity. From the AXS close to the Pd K edge, a specific Pd-P-Pd atomic configuration was observed, which is related to the stable state in the P 2p core levels. All of the core levels measured in PNCP have the deepest binding energies among these glasses, indicating the most stable electronic states. Local structure around the P atoms is discussed by the AXS data and a metastable crystal appeared in a supercooled metallic alloy close to PNCP.

Core-level photoemission spectroscopy and anomalous x-ray scattering (AXS) measurements were performed for the Pd42.5Ni7.5Cu30P20 (PNCP) excellent metallic glass to investigate the chemical nature and local atomic structure, and the results were compared to those in Pd40Ni40P20 and Pd40Cu40P20. The P 2p core levels clearly separate into two states, indicating that the P atoms have two different chemical sites, which is a strong experimental proof for the existence of an elastic inhomogeneity. From the AXS close to the Pd K edge, a specific Pd-P-Pd atomic configuration was observed, which is related to the stable state in the P 2p core levels. All of the core levels measured in PNCP have the deepest binding energies among these glasses, indicating the most stable electronic states. Local structure around the P atoms is discussed by the AXS data and a metastable crystal appeared in a supercooled metallic alloy close to PNCP.