This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.101.060103 in citations.
Please use the identifier: http://hdl.handle.net/2128/25447 in citations.
Origin of sawtooth domain walls in ferroelectrics
Origin of sawtooth domain walls in ferroelectrics
Domains and domain walls are among the key factors that determine the performance of ferroelectric materials. In recent years, a unique type of domain walls, i.e., the sawtooth-shaped domain walls, has been observed in BiFeO3 and PbTiO3. Here, we build a minimal model to reveal the origin of these s...
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Personal Name(s): | Zhang, J. |
---|---|
Wang, Y.-J. / Liu, J. / Xu, J. / Wang, D. (Corresponding author) / Wang, L. / Ma, X.-L. / Jia, C.-L. / Bellaiche, L. | |
Contributing Institute: |
Physik Nanoskaliger Systeme; ER-C-1 |
Published in: | Physical Review B Physical review / B, 101 101 (2020 2020) 6 6, S. 060103 060103 |
Imprint: |
Woodbury, NY
Inst.
2020
|
DOI: |
10.1103/PhysRevB.101.060103 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/25447 in citations.
Domains and domain walls are among the key factors that determine the performance of ferroelectric materials. In recent years, a unique type of domain walls, i.e., the sawtooth-shaped domain walls, has been observed in BiFeO3 and PbTiO3. Here, we build a minimal model to reveal the origin of these sawtooth-shaped domain walls. Incorporating this model into Monte Carlo simulations shows that (i) the competition between the long-range Coulomb interaction (due to bound charges) and short-range interaction (due to opposite dipoles) is responsible for the formation of these peculiar domain walls and (ii) their relative strength is critical in determining the periodicity of these sawtooth-shaped domain walls. Necessary conditions to form such domain walls are also discussed. |