The 66th JSAP Spring Meeting, 2019

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Symposium (Oral)

Symposium » Surface Science Innovation by Positron Diffraction and High Performance Data Driven Science

[9p-W833-1~9] Surface Science Innovation by Positron Diffraction and High Performance Data Driven Science

Sat. Mar 9, 2019 1:30 PM - 5:55 PM W833 (W833)

Atsuo Kawasuso(National Institutes for Quantum and Radiological Science and Technology), Ayahiko Ichimiya(Nagoya University)

3:00 PM - 3:15 PM

[9p-W833-4] RHEED Wave Field for Compressed Surface Bilayer of InP(111)A-(1×1)

〇Yoshimi Horio1, Junji Yuhara2, Yuji Takakuwa3 (1.Daido Univ., 2.Nagoya Univ., 3.IMRAM Tohoku Univ.)

Keywords:Wave Field, InP(111)A, Auger Intensity

Ideal spacing in the surface bilayer of InP (111) A- (1 × 1) surface is 0.85 Å, however, it is confirmed to be compressed as 0.1 Å accompanied with In defects on the surface by the analysis of RHEED rocking curves. The wave fields for this compressed surface bilayer have been obtained from dynamical calculations and shown the difference from those for ideal surface. In addition, the correlation between the Auger intensity change depending on the glancing angle (BRAES profile) and the wave field is demonstrated.