TY  - JOUR
AU  - Farwick zum Hagen, Ferdinand H.
AU  - Zimmermann, Domenik M.
AU  - Silva, Caio C.
AU  - Schlueter, Christoph
AU  - Atodiresei, Nicolae
AU  - Jolie, Wouter
AU  - Martínez-Galera, Antonio J.
AU  - Dombrowski, Daniela
AU  - Schröder, Ulrike A.
AU  - Will, Moritz
AU  - Lazić, Predrag
AU  - Caciuc, Vasile
AU  - Blügel, Stefan
AU  - Lee, Tien-Lin
AU  - Michely, Thomas
AU  - Busse, Carsten
TI  - Structure and Growth of Hexagonal Boron Nitride on Ir(111)
JO  - ACS nano
VL  - 10
IS  - 12
SN  - 1936-086X
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2016-07885
SP  - 11012–11026
PY  - 2016
AB  - Using the X-ray standing wave method, scanning tunneling microscopy, low energy electron diffraction, and density functional theory, we precisely determine the lateral and vertical structure of hexagonal boron nitride on Ir(111). The moiré superstructure leads to a periodic arrangement of strongly chemisorbed valleys in an otherwise rather flat, weakly physisorbed plane. The best commensurate approximation of the moiré unit cell is (12 × 12) boron nitride cells resting on (11 × 11) substrate cells, which is at variance with several earlier studies. We uncover the existence of two fundamentally different mechanisms of layer formation for hexagonal boron nitride, namely, nucleation and growth as opposed to network formation without nucleation. The different pathways are linked to different distributions of rotational domains, and the latter enables selection of a single orientation only.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000391079700045
DO  - DOI:10.1021/acsnano.6b05819
UR  - https://juser.fz-juelich.de/record/825422
ER  -