首页> 外文期刊>Solid State Communications >Intrinsic defects in SiC nanoparticles as studied by pulsed electron paramagnetic resonance
【24h】

Intrinsic defects in SiC nanoparticles as studied by pulsed electron paramagnetic resonance

机译:Intrinsic defects in SiC nanoparticles as studied by pulsed electron paramagnetic resonance

获取原文
获取原文并翻译 | 示例
           

摘要

Stoichiometric and nitrogen doped SiC nanopowders have been investigated by multi-approaches EPR methods. The paramagnetic intrinsic defects formed in the nanoparticles were studied by cw EPR, field swept electron spin echo, pulsed electron unclear double resonance and hyperfine sublevel correlation spectroscopy. We observe weak Si-29 and C-13 superhyperfine couplings With silicon and carbon atoms in the second coordination sphere and beyond indicating a high delocalization of the electronic wave function of the unpaired electron. Additional coupling with protons from presumably clustered hydrogen atoms have been detected. Although nitrogen has been found to be present in the nanomaterials no related shallow donor state was formed. (c) 2008 Elsevier Ltd. All rights reserved.

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号