Reflection high energy positron diffraction from a Si(111) surface

被引：85

作者：

Kawasuso, A ^{[1
]}

Okada, S ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Takasaki Radiat Chem Res Estab, Takasaki, Gumma 37012, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.81.2695

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This report details the first observation of reflection high energy positron diffraction. A 20 keV positron beam was irradiated onto a hydrogen-terminated Si(111) surface from the [1 (1) over bar 0] and [11 (2) over bar] directions. The zeroth Laue zone consisting of a specular and diffraction spots with a shadow edge was clearly observed using a microchannel plate at relatively high glancing angles (theta > 3.0 degrees). The rocking curve of the specular spot showed the primary Bragg peak and the total reflection of positrons. [S0031-9007(98)07178-6].

引用

页码：2695 / 2698

页数：4

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