Slow Positron Facility

KEK

Development of TRHEPD: the ultimate tool for surface structure analysis

A group led by principal researcher Atsuo Kawasuso of the Advanced Science Research Center, Japan Atomic Energy Agency, (JAEA), Professor Toshio Hyodo of the Institute of Materials Structure Science, KEK, and Professor Emeritus Ayahiko Ichimiya of Nagoya University has refined reflection high-energy positron diffraction (RHEPD) method to develop total-reflection high-energy positron diffraction (TRHEPD) method. A high-intensity positron beam whose intensity was increased 10 times in 2010 was used to obtain clear diffraction patterns from the (111) reconstructed surface of a silicon single crystal.

Appl. Phys. Express 7, 056601 (2014).

→ Press Release (2014.4.21)