Ising lines: Natural topological defects within ferroelectric Bloch walls

V. Stepkova; P. Marton; J. Hlinka

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Ising lines: Natural topological defects within ferroelectric Bloch walls

机译：Ising线：铁电Bloch壁内的自然拓扑缺陷

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Phase-field simulations demonstrate that the polarization order-parameter field in the Ginzburg-Landau-Devonshire model of rhombohedral ferroelectric BaTiO_3 allows for an interesting linear defect, stable under simple periodic boundary conditions. This linear defect, here called the Ising line, can be described as an about 2-nm-thick intrinsic paraelectric nanorod acting as a highly mobile borderline between finite portions of Bloch-like domain walls of opposite helicity. These Ising lines play the role of domain boundaries associated with the Ising-to-Bloch domain-wall phase transition.

机译：相场仿真表明，菱面体铁电体BaTiO_3的Ginzburg-Landau-Devonshire模型中的极化阶数参数场允许出现有趣的线性缺陷，该缺陷在简单的周期性边界条件下稳定。这种线性缺陷，这里称为伊辛线，可以描述为大约2纳米厚的本征顺电纳米棒，它充当螺旋相对的Bloch状畴壁的有限部分之间的高度可移动边界线。这些伊辛线起着与伊辛到布洛赫域壁相变相关的域边界的作用。

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来源
《Physical review》 |2015年第9期|094106.1-094106.6|共6页
作者
V. Stepkova; P. Marton; J. Hlinka;
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作者单位

Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18221 Praha 8, Czech Republic;

Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18221 Praha 8, Czech Republic;

Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 18221 Praha 8, Czech Republic;

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正文语种 eng
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关键词
domain structure; hysteresis; dielectric, piezoelectric, ferroelectric, and antiferroelectric materials;

机译：域结构;磁滞电介质;压电;铁电和反铁电材料;

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1. Mixed Bloch-Neel-Ising character of 180° ferroelectric domain walls [J] . Donghwa Lee, Rakesh K. Behera, Pingping Wu, Physical review . 2009,第6期

机译：180°铁电畴壁的混合Bloch-Neel-Ising特性
2. Stochastic resonance between counterpropagating Bloch walls: A nonequilibrium-potential description in a neighborhood of the nonequilibrium Ising-Bloch bifurcation [J] . DellErba M.G., Izús G.G., Deza R.R., The European physical journal, D. Atomic, molecular, and optical physics . 2011,第1期

机译：反向传播的Bloch壁之间的随机共振：非平衡Ising-Bloch分叉附近的非平衡势描述
3. Theory for the Spatiotemporal Dynamics of Domain Walls close to a Nonequilibrium Ising-Bloch Transition [J] . Damia Gomila, Pere Colet, Daniel Walgraef Physical review letters . 2015,第8期

机译：接近非平衡Ising-Bloch跃迁的畴壁时空动力学理论
4. Ising- and Bloch walls of phase domains in 2D parametric [C] . Ye. Larionova, A. Esteban-Martin, C. O. Weiss Quantum Electronics and Laser Science Conference . 2003

机译：在2D参数中的相位域的ising-和bloch墙壁
5. Phase-Field Simulations of Topological Structures and Topological Phase Transitions in Ferroelectric Oxide Heterostructures [D] . Zijian Hong. 2017

机译：铁电氧化物异质结构中拓扑结构和拓扑相转变的相场模拟
6. Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy [O] . Salia Cherifi-Hertel, Hervé Bulou, Riccardo Hertel, -1

机译：非线性光学显微镜揭示非静性和手性铁电畴壁
7. Ising lines: natural topological defects within chiral ferroelectric domain walls [O] . Stepkova, V., Marton, P., Hlinka, J. 2015

机译：Ising lines：手性铁电体中的天然拓扑缺陷域墙

Ising lines: Natural topological defects within ferroelectric Bloch walls

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