Tetragonal-tetragonal-monoclinic-rhombohedral transition: Strain relaxation of heavily compressed BiFeO3 epitaxial thin films
作者： Z. Fu , Z. G. Yin , N. F. Chen , X. W. Zhang , Y. J. Zhao
DOI: 10.1063/1.4864077
关键词:
摘要: BiFeO3 films with in-plane compressive strain of −3.5% were deposited on oxygen-deficient La0.3Sr0.7MnO3-δ buffered SrTiO3(001) substrates. This highly strained does not relax directly into its rhombohedral parent phase upon increasing the film thickness. Instead, a multi-step path involving structural transitions is observed. The misfit stress first accommodated by occurrence true tetragonal c/a ratio 1.23, then reduced transformation to MC-type monoclinic structure, and finally alleviated through MC-rhombohedral transition. Moreover, this process enables formation strain-driven morphotropic boundaries at level much lower than reported threshold −4.5%.
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Zuhuang Chen, S. Prosandeev, Z. L. Luo, Wei Ren, Yajun Qi, C. W. Huang, Lu You, C. Gao, I. A. Kornev, Tom Wu, Junling Wang, P. Yang, T. Sritharan, L. Bellaiche, Lang Chen, Coexistence of ferroelectric triclinic phases in highly strained BiFeO 3 films Physical Review B. ,vol. 84, pp. 094116- ,(2011) , 10.1103/PHYSREVB.84.094116
M. Rajeswari, W. Prellier, T. Venkatesan, R. L. Greene, Effects of annealing and strain on La1−xCaxMnO3 thin films: A phase diagram in the ferromagnetic region Applied Physics Letters. ,vol. 75, pp. 1446- 1448 ,(1999) , 10.1063/1.124720
Nicola A Spaldin, Nicola A Spaldin, Alison J Hatt, Alison J Hatt, Hans M Christen, Hyun Sik Kim, Hyun Sik Kim, Joong Hee Nam, Stress-induced R − M A − M C − T symmetry changes in BiFeO 3 films Physical Review B. ,vol. 83, pp. 144107- ,(2011) , 10.1103/PHYSREVB.83.144107
A. E. Romanov, A. Vojta, W. Pompe, M. J. Lefevre, J. S. Speck, Domain Patterns in (111) Oriented Tetragonal Ferroelectric Films Physica Status Solidi (a). ,vol. 172, pp. 225- 253 ,(1999) , 10.1002/(SICI)1521-396X(199903)172:1<225::AID-PSSA225>3.0.CO;2-2
R. J. Zeches, M. D. Rossell, J. X. Zhang, A. J. Hatt, Q. He, C.-H. Yang, A. Kumar, C. H. Wang, A. Melville, C. Adamo, G. Sheng, Y.-H. Chu, J. F. Ihlefeld, R. Erni, C. Ederer, V. Gopalan, L. Q. Chen, D. G. Schlom, N. A. Spaldin, L. W. Martin, R. Ramesh, A Strain-Driven Morphotropic Phase Boundary in BiFeO3 Science. ,vol. 326, pp. 977- 980 ,(2009) , 10.1126/SCIENCE.1177046
Heng-Jui Liu, Chen-Wei Liang, Wen-I Liang, Hsiang-Jung Chen, Jan-Chi Yang, Chun-Yen Peng, Guang-Fu Wang, Feng-Nan Chu, Yi-Chun Chen, Hsin-Yi Lee, Li Chang, Su-Jien Lin, Ying-Hao Chu, Strain-driven phase boundaries in BiFeO 3 thin films studied by atomic force microscopy and x-ray diffraction Physical Review B. ,vol. 85, pp. 014104- ,(2012) , 10.1103/PHYSREVB.85.014104
Daisuke Kan, Ichiro Takeuchi, Effect of substrate orientation on lattice relaxation of epitaxial BiFeO3 thin films Journal of Applied Physics. ,vol. 108, pp. 014104- ,(2010) , 10.1063/1.3452360
Anoop R. Damodaran, Chen-Wei Liang, Qing He, Chun-Yen Peng, Li Chang, Ying-Hao Chu, Lane W. Martin, Nanoscale Structure and Mechanism for Enhanced Electromechanical Response of Highly Strained BiFeO3 Thin Films Advanced Materials. ,vol. 23, pp. 3170- 3175 ,(2011) , 10.1002/ADMA.201101164
D. S. Rana, K. Takahashi, K. R. Mavani, I. Kawayama, H. Murakami, M. Tonouchi, T. Yanagida, H. Tanaka, T. Kawai, Thickness dependence of the structure and magnetization of Bi Fe O 3 thin films on ( La Al O 3 ) 0.3 ( Sr 2 Al Ta O 6 ) 0.7 (001) substrate Physical Review B. ,vol. 75, pp. 060405- ,(2007) , 10.1103/PHYSREVB.75.060405
H. Toupet, F. Le Marrec, C. Lichtensteiger, B. Dkhil, M. G. Karkut, Evidence for a first-order transition from monoclinic α to monoclinic β phase in BiFeO 3 thin films Physical Review B. ,vol. 81, pp. 140101- ,(2010) , 10.1103/PHYSREVB.81.140101