TY  - JOUR
A1  - Dzhigaev, D.
A1  - Shabalin, A.
A1  - Stankevic, T.
A1  - Lorenz, Ulf
A1  - Kurta, R. P.
A1  - Seiboth, F.
A1  - Wallentin, J.
A1  - Singer, A.
A1  - Lazarev, S.
A1  - Yefanov, O. M.
A1  - Borgstrom, M.
A1  - Strikhanov, M. N.
A1  - Samuelson, L.
A1  - Falkenberg, G.
A1  - Schroer, C. G.
A1  - Mikkelsen, A.
A1  - Vartanyants, I. A.
T1  - Bragg coherent x-ray diffractive imaging of a single indium phosphide nanowire
JF  - Journal of optics
N2  - Three-dimensional (3D) Bragg coherent x-ray diffractive imaging (CXDI) with a nanofocused beam was applied to quantitatively map the internal strain field of a single indium phosphide nanowire. The quantitative values of the strain were obtained by pre-characterization of the beam profile with transmission ptychography on a test sample. Our measurements revealed the 3D strain distribution in a region of 150 nm below the catalyst Au particle. We observed a slight gradient of the strain in the range of +/- 0.6% along the [111] growth direction of the nanowire. We also determined the spatial resolution in our measurements to be about 10 nm in the direction perpendicular to the facets of the nanowire. The CXDI measurements were compared with the finite element method simulations and show a good agreement with our experimental results. The proposed approach can become an effective tool for in operando studies of the nanowires.
KW  - Bragg coherent x-ray diffractive imaging
KW  - InP nanowires
KW  - strain field
Y1  - 2016
U6  - https://doi.org/10.1088/2040-8978/18/6/064007
SN  - 2040-8978
SN  - 2040-8986
VL  - 18
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  -