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The c-axis and a-axis orientations in InN grown directly on (0001) sapphire substrate by rf-MBE

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7 Author(s)
Yamaguchi, T. ; Dept. of Photonics, Ritsumeikan Univ., Shiga, Japan ; Saito, Y. ; Kano, K. ; Araki, T.
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InN films were grown on (0001) sapphire substrates by radio-frequency plasma-excited molecular beam epitaxy. Even without the initial growth processing, which includes substrate nitridation and buffer layer deposition, the c-axis orientation in InN films was well controlled by increasing the growth temperature but keeping the temperature below the InN dissociation temperature. However, without initial growth processing, the a-axis orientation in InN films tended to have various rotation domains within the c-plane. Hence, the initial growth processes of substrate nitridation and buffer layer deposition were useful and effective ways to control the rotation domains.

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Indium Phosphide and Related Materials Conference, 2002. IPRM. 14th

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