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Nano-Quasicrystalline Particles in Mn-Ion Implanted GaAs

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Abstract

Both icosahedral and decagonal quasicrystalline particles of a few tens of nanometers in size have been found in Mn-ion implanted GaAs single crystals with a dose of 8×1016 Mn+/cm2 by high resolution electron microscopy (HREM). the identity of these quasicrystals was confirmed by the Fourier transforms made from these HREM images and their composition measured by micro-probe X-ray analysis and electron energy loss spectroscopy was 38-45 at.%Mn, the rest being Ga. the orientation relations among the icosahedral quasicrystal (i), the decagonal quasicrystal (d), and the GaAs matrix found by both HREM images and their Fourier transforms are: i- 5 // d-10 // GaAs[110] or [114]. in addition, nano-particles of a cubic, a hexagonal, and an orthorhombic Ga-Mn crystalline approximant have also been found in the GaAs matrix.

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Authors and Affiliations

  1. Beijing Laboratory of Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, P.O. Box 2724, 100080, Beijing, China

    K. Sun, S. Zhu & K. H. Kuo

  2. Department of Materials Technology and State Key Laboratory for Materials Modification by Laser, Ion, and Electron Beams, 116023, Dalian, China

    K. Sun & S. Zhu

Authors
  1. K. Sun
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  2. S. Zhu
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  3. K. H. Kuo
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Correspondence to K. Sun.

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Sun, K., Zhu, S. & Kuo, K.H. Nano-Quasicrystalline Particles in Mn-Ion Implanted GaAs. MRS Online Proceedings Library 553, 197–207 (1998). https://doi.org/10.1557/PROC-553-197

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