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Non-volatile domain nucleation and growth in multiferroic BiFeO3 films.
Nanotechnology 2011; 22(25):254030N

Abstract

We have presented a systematical study of the domain nucleation and growth behaviors in multiferroic BiFeO(3) (BFO) films. Both the ferroelectric and the ferroelastic switching dynamics were investigated. Several environmental parameters, including the polarization orientations, the monodomain-like matrix, and the ordered domain walls as local boundaries, were well controlled by thin-film strain engineering through changing the vicinal angles of the substrates. The tip-based domain dynamics was studied by subsequent piezoresponse force microscope (PFM) imaging of the domain evolution under external voltage pulses. For the nanodomains written in the monodomain-like environment, the domain wall performed the thermal activated motion. The as-grown 71° domain walls can act as pinning centers for the ferroelectric domain growth driven by low fields; moreover, ferroelastic nucleation near a 71° domain wall will cause the deformation of the domain wall. The ferroelastic domain growth possessed relatively small activation fields, and therefore usually performed non-activated motion. This study revealed the effects of local environments on the dynamics forming nanoscale domains, and opened a pathway for applications in novel non-volatile functional devices.

Authors+Show Affiliations

Department of Physics, National Cheng Kung University, Tainan, Taiwan, Republic of China. ycchen93@mail.ncku.edu.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21572209

Citation

Chen, Yi-Chun, et al. "Non-volatile Domain Nucleation and Growth in Multiferroic BiFeO3 Films." Nanotechnology, vol. 22, no. 25, 2011, p. 254030.
Chen YC, Wang GF, Tai HH, et al. Non-volatile domain nucleation and growth in multiferroic BiFeO3 films. Nanotechnology. 2011;22(25):254030.
Chen, Y. C., Wang, G. F., Tai, H. H., Chen, J. W., Huang, Y. C., Yang, J. C., & Chu, Y. H. (2011). Non-volatile domain nucleation and growth in multiferroic BiFeO3 films. Nanotechnology, 22(25), p. 254030. doi:10.1088/0957-4484/22/25/254030.
Chen YC, et al. Non-volatile Domain Nucleation and Growth in Multiferroic BiFeO3 Films. Nanotechnology. 2011 Jun 24;22(25):254030. PubMed PMID: 21572209.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Non-volatile domain nucleation and growth in multiferroic BiFeO3 films. AU - Chen,Yi-Chun, AU - Wang,Guang-Fu, AU - Tai,Hsiang-Hua, AU - Chen,Jhih-Wei, AU - Huang,Yen-Chin, AU - Yang,Jan-Chi, AU - Chu,Ying-Hao, Y1 - 2011/05/16/ PY - 2011/5/17/entrez PY - 2011/5/17/pubmed PY - 2011/5/17/medline SP - 254030 EP - 254030 JF - Nanotechnology JO - Nanotechnology VL - 22 IS - 25 N2 - We have presented a systematical study of the domain nucleation and growth behaviors in multiferroic BiFeO(3) (BFO) films. Both the ferroelectric and the ferroelastic switching dynamics were investigated. Several environmental parameters, including the polarization orientations, the monodomain-like matrix, and the ordered domain walls as local boundaries, were well controlled by thin-film strain engineering through changing the vicinal angles of the substrates. The tip-based domain dynamics was studied by subsequent piezoresponse force microscope (PFM) imaging of the domain evolution under external voltage pulses. For the nanodomains written in the monodomain-like environment, the domain wall performed the thermal activated motion. The as-grown 71° domain walls can act as pinning centers for the ferroelectric domain growth driven by low fields; moreover, ferroelastic nucleation near a 71° domain wall will cause the deformation of the domain wall. The ferroelastic domain growth possessed relatively small activation fields, and therefore usually performed non-activated motion. This study revealed the effects of local environments on the dynamics forming nanoscale domains, and opened a pathway for applications in novel non-volatile functional devices. SN - 1361-6528 UR - https://www.unboundmedicine.com/medline/citation/21572209/Non_volatile_domain_nucleation_and_growth_in_multiferroic_BiFeO3_films_ L2 - https://doi.org/10.1088/0957-4484/22/25/254030 DB - PRIME DP - Unbound Medicine ER -