標題: Tuning the magnetic properties of self-assembled BiFeO3-CoFe2O4 heteroepitaxy by magneto-structural coupling
作者: Amrillah, Tahta
Vandrangi, Suresh K.
Bitla, Yugandhar
Do, Thi Hien
Liao, Sheng-Chieh
Tsai, Chih-Ya
Chin, Yi-Ying
Liu, Yen-Ting
Lin, Man-Ling
He, Qing
Lin, Hong-Ji
Lee, Hsin-Yi
Lai, Chih-Huang
Arenholz, Elke
Juang, Jenh-Yih
Chu, Ying-Hao
材料科學與工程學系
電子物理學系
光電工程學系
Department of Materials Science and Engineering
Department of Electrophysics
Department of Photonics
公開日期: 2016
摘要: Magnetic and multiferroic nanocomposites with two distinct phases have been a topic of intense research for their profound potential applications in the field of spintronics. In addition to growing high-quality phase separated heteroepitaxial nanocomposites, the strain engineering that is conducive to enhance the tunability of material properties, in general, and the magnetic properties, in particular, is of utmost importance in exploring new possibilities. Here, we investigated the magneto-structural coupling between anti-ferromagnetic BiFeO3 (BFO) and ferrimagnetic CoFe2O4 (CFO) in self-assembled vertically aligned nanocomposites grown on LaAlO3 (LAO) and SrTiO3 (STO) substrates. We found that BFO exhibits tetragonal (T) and rhombohedral (R) structures as the stable phases and CFO has high magnetocrystalline anisotropy even in the form of nanocomposites. The temperature and magnetic field dependent magnetizations of T_ BFO-CFO/LAO and R_ BFO-CFO/STO nanocomposites primarily demonstrate the magnetoelastic coupling between these variants.
URI: http://dx.doi.org/10.1039/c5nr09269h
http://hdl.handle.net/11536/133686
ISSN: 2040-3364
DOI: 10.1039/c5nr09269h
期刊: NANOSCALE
Volume: 8
Issue: 16
起始頁: 8855
結束頁: 8862
顯示於類別:期刊論文