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Materials 2017, 10(7), 839; https://doi.org/10.3390/ma10070839

The Microstructural Characterization of Multiferroic LaFeO3-YMnO3 Multilayers Grown on (001)- and (111)-SrTiO3 Substrates by Transmission Electron Microscopy

1
National Laboratory of Solid State Microstructures & Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China
2
Shanghai Nanoport, Thermo Fisher Scientific Inc., Shanghai 201210, China
3
National Laboratory of Solid State Microstructures & Department of Physics, Nanjing University, Nanjing 210093, China
*
Author to whom correspondence should be addressed.
Academic Editor: Melvin M. Vopson
Received: 31 May 2017 / Revised: 15 July 2017 / Accepted: 17 July 2017 / Published: 21 July 2017
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Abstract

The microstructure of multiferroic LaFeO3-YMnO3 (LFO-YMO) multilayers grown on (001)- and (111)-SrTiO3 substrates is characterized by the transmission electron microscopy (TEM). Detailed TEM characterization reveals that LFO-YMO multilayers grown on both substrates have clear layer-by-layer morphology and distinct chemical-composition layered structure. The most notable feature is that LFO-YMO multilayers grown on (001)-SrTiO3 substrate have three types of domains, while those on (111)-SrTiO3 have only one. The multi-/twin- domain structure can be qualitatively explained by the lattice mismatch in this system. The details of the domain structure of LFO-YMO multilayers are crucial to understanding their magnetic properties. View Full-Text
Keywords: multiferroic; multilayers; transmission electron microscopy; domain structure multiferroic; multilayers; transmission electron microscopy; domain structure
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Pang, B.; Sun, L.; Shen, X.; Lv, Y.-Y.; Li, X.; Wu, F.-X.; Yao, S.-H.; Zhou, J.; Zhang, S.-T.; Chen, Y. The Microstructural Characterization of Multiferroic LaFeO3-YMnO3 Multilayers Grown on (001)- and (111)-SrTiO3 Substrates by Transmission Electron Microscopy. Materials 2017, 10, 839.

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