%0 Journal Article %1 PhysRevB.101.060103 %A Zhang, J. %A Wang, Y.-J. %A Liu, J. %A Xu, J. %A Wang, D. %A Wang, L. %A Ma, X.-L. %A Jia, C.-L. %A Bellaiche, L. %D 2020 %I American Physical Society %J Phys. Rev. B %K BiFeO3 charged_domain-walls charged_domain_walls theory %N 6 %P 060103 %R 10.1103/PhysRevB.101.060103 %T Origin of sawtooth domain walls in ferroelectrics %U https://link.aps.org/doi/10.1103/PhysRevB.101.060103 %V 101 %X 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.

@article{PhysRevB.101.060103, abstract = {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.}, added-at = {2021-10-25T12:41:03.000+0200}, author = {Zhang, J. and Wang, Y.-J. and Liu, J. and Xu, J. and Wang, D. and Wang, L. and Ma, X.-L. and Jia, C.-L. and Bellaiche, L.}, biburl = {https://www.bibsonomy.org/bibtex/28469f32f6eb42ce5114c9bb520e2d300/skoerbel}, doi = {10.1103/PhysRevB.101.060103}, interhash = {657542ce7f480c0235ce13c042a2f13c}, intrahash = {8469f32f6eb42ce5114c9bb520e2d300}, journal = {Phys. Rev. B}, keywords = {BiFeO3 charged_domain-walls charged_domain_walls theory}, month = feb, number = 6, numpages = {7}, pages = 060103, publisher = {American Physical Society}, timestamp = {2021-10-25T12:41:03.000+0200}, title = {Origin of sawtooth domain walls in ferroelectrics}, url = {https://link.aps.org/doi/10.1103/PhysRevB.101.060103}, volume = 101, year = 2020 }