期刊
APPLIED PHYSICS LETTERS
卷 77, 期 9, 页码 1286-1288出版社
AMER INST PHYSICS
DOI: 10.1063/1.1290048
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We measure the diffraction peaks of InGaAsP selective metal-organic vapor-phase epitaxial layers on 1.7-mu m-wide InP stripe regions between a pair of SiO2 mask stripes. This is achieved by using an x-ray microbeam with low angular divergence and a narrow energy bandwidth that was produced through two-dimensional condensation of undulator radiation x rays from a synchrotron light source using successive asymmetric diffraction. The lattice strain is investigated by changing the SiO2 mask width from 4 to 40 mu m. The rocking curves reveal clear peak shifts in the InGaAsP layers from the higher angle side to the lower angle side of the InP substrate peaks as the mask width increases. (C) 2000 American Institute of Physics. [S0003- 6951(00)01935-5].
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