Stabilization of ferroelastic charged domain walls in self-assembled BiFeO₃nanoislands (2024)

Chen, M., Wang, J., Zhu, R., Sun, Y., Zhang, Q., Ma, J., Wang, Y., Gu, L., Gao, P., Ma, J., & Nan, C. W. (2020). Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands. Journal of Applied Physics, 128(12), 文章 124103. https://doi.org/10.1063/5.0022771

Chen, Mingfeng ; Wang, Jing ; Zhu, Ruixue 等. / Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands. 在: Journal of Applied Physics. 2020 ; 卷 128, 号码 12.

@article{14ce378d38c2452cbebcb9dfbb2bb10c,

title = "Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands",

abstract = "Understanding the microscopic origin of exotic domain configurations and emergent properties in charged domain walls is essential for both fundamental physics and applications in next-generation nanoelectronics. In self-assembled BiFeO3 nanoislands, 71° ferroelastic charged domain walls were spontaneously formed, which were traditionally regarded as unstable architectures. Here, by combining scanning transmission electron microscopy, geometric phase analysis, and energy dispersion spectrum, we explored the microscopic mechanism of stabilizing the tail-to-tail charged domain walls with upward center-divergent quad-domain structures in BiFeO3 nanoislands. The comprehensive factors include the fully relaxed rhombohedral phase in nanoislands, negative surface screening charges, and upward built-in bias at the BiFeO3-(La,Sr)MnO3 interface, which are respectively induced by interfacial periodic dislocations, surface reconstructions, and interfacial terminations. Moreover, the unusual polarization state and domain-wall arrangement in the nanoislands were also proved to be stable even at an elevated temperature.",

author = "Mingfeng Chen and Jing Wang and Ruixue Zhu and Yuanwei Sun and Qinghua Zhang and Ji Ma and Yue Wang and Lin Gu and Peng Gao and Jing Ma and Nan, {Ce Wen}",

note = "Publisher Copyright: {\textcopyright} 2020 Author(s).",

year = "2020",

month = sep,

day = "28",

doi = "10.1063/5.0022771",

language = "English",

volume = "128",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "12",

}

Chen, M, Wang, J, Zhu, R, Sun, Y, Zhang, Q, Ma, J, Wang, Y, Gu, L, Gao, P, Ma, J & Nan, CW 2020, 'Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands', Journal of Applied Physics, 卷 128, 号码 12, 124103. https://doi.org/10.1063/5.0022771

Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands. / Chen, Mingfeng; Wang, Jing; Zhu, Ruixue 等.
在: Journal of Applied Physics, 卷 128, 号码 12, 124103, 28.09.2020.

科研成果: 期刊稿件 › 文章 › 同行评审

TY - JOUR

T1 - Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands

AU - Chen, Mingfeng

AU - Wang, Jing

AU - Zhu, Ruixue

AU - Sun, Yuanwei

AU - Zhang, Qinghua

AU - Ma, Ji

AU - Wang, Yue

AU - Gu, Lin

AU - Gao, Peng

AU - Ma, Jing

AU - Nan, Ce Wen

N1 - Publisher Copyright:© 2020 Author(s).

PY - 2020/9/28

Y1 - 2020/9/28

N2 - Understanding the microscopic origin of exotic domain configurations and emergent properties in charged domain walls is essential for both fundamental physics and applications in next-generation nanoelectronics. In self-assembled BiFeO3 nanoislands, 71° ferroelastic charged domain walls were spontaneously formed, which were traditionally regarded as unstable architectures. Here, by combining scanning transmission electron microscopy, geometric phase analysis, and energy dispersion spectrum, we explored the microscopic mechanism of stabilizing the tail-to-tail charged domain walls with upward center-divergent quad-domain structures in BiFeO3 nanoislands. The comprehensive factors include the fully relaxed rhombohedral phase in nanoislands, negative surface screening charges, and upward built-in bias at the BiFeO3-(La,Sr)MnO3 interface, which are respectively induced by interfacial periodic dislocations, surface reconstructions, and interfacial terminations. Moreover, the unusual polarization state and domain-wall arrangement in the nanoislands were also proved to be stable even at an elevated temperature.

AB - Understanding the microscopic origin of exotic domain configurations and emergent properties in charged domain walls is essential for both fundamental physics and applications in next-generation nanoelectronics. In self-assembled BiFeO3 nanoislands, 71° ferroelastic charged domain walls were spontaneously formed, which were traditionally regarded as unstable architectures. Here, by combining scanning transmission electron microscopy, geometric phase analysis, and energy dispersion spectrum, we explored the microscopic mechanism of stabilizing the tail-to-tail charged domain walls with upward center-divergent quad-domain structures in BiFeO3 nanoislands. The comprehensive factors include the fully relaxed rhombohedral phase in nanoislands, negative surface screening charges, and upward built-in bias at the BiFeO3-(La,Sr)MnO3 interface, which are respectively induced by interfacial periodic dislocations, surface reconstructions, and interfacial terminations. Moreover, the unusual polarization state and domain-wall arrangement in the nanoislands were also proved to be stable even at an elevated temperature.

UR - http://www.scopus.com/inward/record.url?scp=85092019274&partnerID=8YFLogxK

U2 - 10.1063/5.0022771

DO - 10.1063/5.0022771

M3 - Article

AN - SCOPUS:85092019274

SN - 0021-8979

VL - 128

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 12

M1 - 124103

ER -

Chen M, Wang J, Zhu R, Sun Y, Zhang Q, Ma J 等. Stabilization of ferroelastic charged domain walls in self-assembled BiFeO3nanoislands. Journal of Applied Physics. 2020 9月 28;128(12):124103. doi: 10.1063/5.0022771