期刊
PHYSICA B-CONDENSED MATTER
卷 405, 期 23, 页码 4866-4870出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2010.09.022
关键词
KNbO3 and KTaO3 nanocrystals; Hydrothermal method; Phonons; Phase transitions
资金
- Korean Government (MOEHRD [KRF-2008-313-C00253, 2009-0073752]
- National Research Foundation of Korea [2009-0073752] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We investigate the structural and phase transition characteristics of hydrothermally grown KNbO3 and KTaO3 nanocrystals. Field emission scanning electron microscope and transmission electron microscope measurements clearly show that the KNbO3 spectroscopy measurement reveals the existence of a hydroxyl group in both nanocrystals. The hydroxyl group seems to be related to the enlarged lattice constants, the lowered structural phase transition temperatures, the broad phonon width and the increased number of Raman-active phonon modes in KNbO3 and KTaO3 nanocrystals. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据