Issue 14, 2013

Tuning the formation and functionalities of ultrafine CoFe2O4nanocrystalsvia interfacial coherent strain

Abstract

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.

Graphical abstract: Tuning the formation and functionalities of ultrafine CoFe2O4 nanocrystals via interfacial coherent strain

Article information

Article type
Review Article
Submitted
24 Jan 2013
Accepted
29 Apr 2013
First published
07 May 2013

Nanoscale, 2013,5, 6219-6223

Tuning the formation and functionalities of ultrafine CoFe2O4 nanocrystals via interfacial coherent strain

Y. Hsieh, H. Kuo, S. Liao, H. Liu, Y. Chen, H. Lin, C. Chen, C. Lai, Q. Zhan, Y. Chueh and Y. Chu, Nanoscale, 2013, 5, 6219 DOI: 10.1039/C3NR00413A

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