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Self-ordering of quasi-quantum wires in multilayer InAlAs/AlGaAs nanostructures grown by molecular beam epitaxy is identified. The chain-like structures along the [1 1 ̄0] direction formed by coalescence of quantum dots were observed. The photoluminescence of the nanostructures is partially polarized along the [1 1 ̄0] direction. The polarization ratio depends on the wavelength and the maximum polarization...
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