Journal Article

DESY-2014-03071

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Short-Range Order in Ge-As-Te Glasses

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

2014
Wiley-Blackwell Oxford [u.a.]

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Please use a persistent id in citations: doi:10.1111/jace.12823

Abstract: The structure of Te-rich (75–80 at.% Te) and Te-poor (40 at.% Te) Ge–As–Te glasses has been investigated by diffraction and extended X-ray absorption fine structure (EXAFS) measurements. Large-scale structural models have been created by fitting simultaneously diffraction and EXAFS datasets by the reverse Monte Carlo simulation technique. It is found that As–As bonds improve the fit quality in the case of Te-rich glasses while no Ge–Ge bonding is necessary in these compositions. In the Te-poor glasses, Te–Te homopolar bonds are also observed while Ge binds preferentially to Te rather than to As. Ge–As and Ge–Te coordination numbers do not change significantly with increasing Ge content.

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Contributing Institute(s):

1. DOOR-User (DOOR)
2. FS-Experimentebetreuung DORIS (FS-DO)

Research Program(s):

1. DORIS Beamline BW5 (POF2-54G13) (POF2-54G13)
2. DORIS Beamline X1 (POF2-54G13) (POF2-54G13)
3. FS-Proposal: II-20100137 EC (II-20100137-EC) (II-20100137-EC)
4. FS-Proposal: I-20120223 EC (I-20120223-EC) (I-20120223-EC)
5. CALIPSO - Coordinated Access to Lightsources to Promote Standards and Optimization (312284) (312284)

Experiment(s):

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

Appears in the scientific report 2014

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Database coverage:
; BIOSIS Previews ; Current Contents - Physical, Chemical and Earth Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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