標題: | Tuning the formation and functionalities of ultrafine CoFe2O4 nanocrystals via interfacial coherent strain |
作者: | Hsieh, Ying-Hui Kuo, Ho-Hung Liao, Sheng-Chieh Liu, Heng-Jui Chen, Ying-Jiun Lin, Hong-Ji Chen, Chien-Te Lai, Chih-Huang Zhan, Qian Chueh, Yu-Lun Chu, Ying-Hao 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 2013 |
摘要: | Complex oxide nanocrystals with a spinel structure show their remarkable optical, electronic, mechanical, thermal, and magnetic properties. In this study, we present a simple yet versatile strategy to grow self-assembled epitaxial CoFe2O4 nanocrystals with well-controlled size (less than 10 nm) and single orientation. CoFe2O4 nanocrystals were fabricated via phase separation in a BiFeO3-CoF2O4 ultrathin film by pulsed laser deposition. The coherent strain at the BiFeO3-CoF2O4 interface suppressed the growth of the nanocrystals regardless of substrate temperatures. This strain also resulted in the ferromagnetic anisotropy and interesting conducting behaviors of ultrafine CFO nanocrystals. |
URI: | http://hdl.handle.net/11536/22429 http://dx.doi.org/10.1039/c3nr00413a |
ISSN: | 2040-3364 |
DOI: | 10.1039/c3nr00413a |
期刊: | NANOSCALE |
Volume: | 5 |
Issue: | 14 |
起始頁: | 6219 |
結束頁: | 6223 |
顯示於類別: | 期刊論文 |