Volume 94, Number 6, June 2011
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||26 May 2011|
Strain field in (Ga,Mn)As/GaAs periodic wires revealed by coherent X-ray diffraction
ANKA-Institute for Synchrotron radiation, Karlsruhe Institute of Technology - 76344 Eggenstein-Leopoldshafen, Germany, EU
2 Max Planck Institute of colloids and interfaces, Department of Biomaterials - 14424 Potsdam-Golm, Germany, EU
3 Microelectronics Research Centre, Cavendish Laboratory, University of Cambridge - Cambridge CB3 0HE, UK, EU
4 Institute of Physics of the ASCR - Cukrovarnicka 10, 162 00 Praha, Czech Republic, EU
5 Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5, 121 16 Praha, Czech Republic, EU
Accepted: 6 May 2011
An experimental and simulation study of the full strain tensor and of strain-induced magnetocrystalline anisotropies in arrays of lithographically patterned (Ga,Mn)As on GaAs(001) is performed using a coherent diffraction lensless microscopy technique. We demonstrate the ability of our technique to get an insight into the strain field propagating in the crystal part belonging to the substrate. The experimentally reconstructed strain fields are in good agreement with those obtained from simulations based on elasticity theory.
PACS: 61.05.cp – X-ray diffraction / 62.20.-x – Mechanical properties of solids / 42.30.-d – Imaging and optical processing
© EPLA, 2011
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