Laminar growth of ultrathin metal films on metal oxides:: Co on hydroxylated α-Al2O3(0001)

被引：124

作者：

Chambers, SA

Droubay, T

Jennison, DR

Mattsson, TR

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

SCIENCE | 2002年 / 297卷 / 5582期

关键词：

D O I：

10.1126/science.1073404

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Metals deposited in vacuum on metal oxides such as alumina normally grow as three-dimensional clusters because of weak adatom-substrate interactions. This tendency hinders our ability to form interfaces of ultrathin, laminar metal films on oxides for use in microelectronics and other technologies where nanostructural control is desired. We present experimental and theoretical results showing that room temperature Co deposition on fully hydroxylated clean sapphire (alpha-Al2O3) produces a surface chemical reaction that leads to laminar growth, despite a large mismatch in lattice constants. This process should be applicable to a wide range of metals and metal oxides.

引用

页码：827 / 831

页数：6

共 35 条

[21]

Mattsson A. E., UNPUB

[22] REVERSIBLE WORK TRANSITION-STATE THEORY - APPLICATION TO DISSOCIATIVE ADSORPTION OF HYDROGEN [J].