laboratory colloquium 2015.06.17

Post date: Jun 17, 2015 7:13:35 AM

"Kikuchi Patterns Observed by New Astrodome RHEED", Yoshimi Horio, e-J. Surf. Sci, Nanotech. 4 118-123 (2006)

Diffraction pattern in the surface normal direction was detected using a hemispherical fluorescent screen set above the surface. The incident electron beam configuration is basically the same as RHEED, but the energy is in MEED region. circular Kikuchi patterns were observed. The Kikuchi patterns with different glancing angle and the electron beam energy are shown in the paper. The mechanism of those Kikuchi pattern is clearly explained in the paper, which is educational for RHEED users.

Thre reason why the circular Kikuchi pattern is formed by inelastic electrons only is summarized in the attached documents.