超晶格
垂直的
锌
巴(单位)
材料科学
晶体结构
谐振器
凝聚态物理
结晶学
单晶
Crystal(编程语言)
格子(音乐)
化学
氧化物
物理
光电子学
几何学
数学
计算机科学
气象学
冶金
程序设计语言
声学
作者
Pu Xian Gao,Y. Ding,Wenjie Mai,Will Hughes,Changshi Lao,Zhong Lin Wang
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2005-09-09
卷期号:309 (5741): 1700-1704
被引量:812
标识
DOI:10.1126/science.1116495
摘要
A previously unknown rigid helical structure of zinc oxide consisting of a superlattice-structured nanobelt was formed spontaneously in a vapor-solid growth process. Starting from a single-crystal stiff nanoribbon dominated by the c -plane polar surfaces, an abrupt structural transformation into the superlattice-structured nanobelt led to the formation of a uniform nanohelix due to a rigid lattice rotation or twisting. The nanohelix was made of two types of alternating and periodically distributed long crystal stripes, which were oriented with their c axes perpendicular to each other. The nanohelix terminated by transforming into a single-crystal nanobelt dominated by nonpolar ( \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} \(01{\bar{1}}0\) \end{document} ) surfaces. The nanohelix could be manipulated, and its elastic properties were measured, which suggests possible uses in electromechanically coupled sensors, transducers, and resonators.
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