Journal Article

PUBDB-2016-04958

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the structure of Ge–As–Te–Cu glasses

Jóvári, P. (Corresponding author)Extern* ; Lucas, P. ; Yang, Z. ; Bureau, B. ; Kaban, I.Extern* ; Beuneu, B. ; Pantalei, C. ; Bednarčik, J.DESY*

2016
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jnoncrysol.2015.11.003  doi:10.3204/PUBDB-2016-04958

Abstract: Short range order in glassy 0.9(Ge0.1As0.15Te0.75)–0.1Cu (GATC1) and 0.9(Ge0.05As0.55Te0.4)–0.1Cu (GATC2) was studied by neutron- and X-ray diffraction as well as EXAFS (extended X-ray absorption fine structure) measurements at the K-edges of all components. The reverse Monte Carlo simulation technique was used to create models consistent with all experimental datasets. It was found that Cu binds predominantly to Te in GATC1 while Cu–As and Cu–Cu bonding is also significant in GATC2. Ge and As atoms have 4 and 3 Ge/As/Te neighbors in both compositions. In GATC1 the formation of ‘extra’ Te–Te bonds can be observed, similarly to GeTe4–AgI glasses.

Note: (c) Elsevier B.V.

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Contributing Institute(s):

1. DOOR-User (DOOR)
2. Experimentebetreuung PETRA III (FS-PE)

Research Program(s):

1. 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) (POF3-621)
2. FS-Proposal: II-20100351 (II-20100351) (II-20100351)

Experiment(s):

1. DORIS Beamline BW5 (DORIS III)
2. DORIS Beamline X1 (DORIS III)

Appears in the scientific report 2016

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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