Journal Article

FZJ-2016-00459

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Self-Diffusion in Amorphous Silicon

Strauß, F. (Corresponding author) ; Dörrer, L. ; Geue, T. ; Stahn, J. ; Koutsioumpas, A.FZJ* ; Mattauch, S.FZJ* ; Schmidt, H.

2016
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/9806  doi:10.1103/PhysRevLett.116.025901

Abstract: The present Letter reports on self-diffusion in amorphous silicon. Experiments were done on Si29/Sinat heterostructures using neutron reflectometry and secondary ion mass spectrometry. The diffusivities follow the Arrhenius law in the temperature range between 550 and 700 °C with an activation energy of (4.4±0.3)  eV. In comparison with single crystalline silicon the diffusivities are tremendously higher by 5 orders of magnitude at about 700 °C, which can be interpreted as the consequence of a high diffusion entropy.

Keyword(s): Energy (1st) ; Condensed Matter Physics (2nd)

Note: fehlende Daten von Koutsioumpas/Mattauch angefordert

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)
3. Streumethoden (PGI-4)
4. JARA-FIT (JARA-FIT)

Research Program(s):

1. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)

Experiment(s):

1. MARIA: Magnetic reflectometer with high incident angle (NL5N)

Appears in the scientific report 2016

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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