In-situ intercalation of VSe2(0001) with K:: direct observation of near-surface structure transformation by incoherent medium-energy electron diffraction

被引：12

作者：

Pronin, II ^{[1
]}

Gomoyunova, MV

Faradzhev, NS

Valdaitsev, DA

Starnberg, HI

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

[2] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[3] Chalmers Univ Technol, SE-41296 Gothenburg, Sweden

来源：

SURFACE SCIENCE | 2000年 / 461卷 / 1-3期

关键词：

Auger electron spectroscopy; surface structure; morphology; roughness and topography;

D O I：

10.1016/S0039-6028(00)00554-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The intercalation of VSe2 with K is investigated in situ by a new technique for imaging the near-surface atomic structure, which is based on forward focusing of backscattered electrons. It is shown that room-temperature deposition of a few K monolayers on to the VSe2(0001) surface results in drastic changes of the crystal structure. Both a considerable expansion of the crystal lattice (the interlayer Se-Se distance is increased by 75%) and a transition from 1T to 3R(I) structure are revealed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：137 / 145

页数：9