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Distribution of zinc‐blende twins and wurtzite segments in GaAs nanowires probed by X‐ray nanodiffraction
Author(s) -
Biermanns Andreas,
Carbone Dina,
Breuer Steffen,
Jacques Vincent L. R.,
Schulli Tobias,
Geelhaar Lutz,
Pietsch Ullrich
Publication year - 2013
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201307246
Subject(s) - wurtzite crystal structure , crystal twinning , nanowire , diffraction , materials science , molecular beam epitaxy , crystallography , epitaxy , zinc , orientation (vector space) , condensed matter physics , optics , optoelectronics , nanotechnology , physics , chemistry , geometry , microstructure , layer (electronics) , mathematics , metallurgy
We study by X‐ray nanodiffraction the statistical distribution of the two possible twinned zinc‐blende (ZB) orientations as well as the occurrence of the wurtzite structure within single GaAs nanowires (NWs) grown by molecular beam epitaxy on Si(111). A fast scanning scheme allowed to perform diffraction experiments on 160 individual NWs. We find that although on average the two ZB orientations show a similar abundance, in 90% of all NWs one ZB orientation dominates and little twinning is observed within each individual NW. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)