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Resistor Network Modeling of Conductive Domain Walls in Lithium Niobate
Advanced Electronic Materials ( IF 6.2 ) Pub Date : 2017-12-06 , DOI: 10.1002/aelm.201700242 Benjamin Wolba 1, 2, 3 , Jan Seidel 3 , Claudio Cazorla 3 , Christian Godau 2 , Alexander Haußmann 2, 4 , Lukas M. Eng 2, 4
Advanced Electronic Materials ( IF 6.2 ) Pub Date : 2017-12-06 , DOI: 10.1002/aelm.201700242 Benjamin Wolba 1, 2, 3 , Jan Seidel 3 , Claudio Cazorla 3 , Christian Godau 2 , Alexander Haußmann 2, 4 , Lukas M. Eng 2, 4
Affiliation
Here the concept of a 2D resistor network (2D RN) is applied in order to model the electrical conductivity along sheet‐like domain walls (DWs) in single crystalline lithium niobate (sc‐LNO). The only input to the RN modeling approach is the DW inclination angle distribution, as measured previously with respect to the polar c‐axis. The simulations then show that a 2D network of Ohmic resistors not only adequately accounts for the different boundary conditions envisaged in experiments, but equally well provides a direct link between the local domain wall conductivity (DWC) and the DW inclination angle α. Moreover, the RN simulations can be directly compared to local‐scale transport measurements, as obtained by scanning probe techniques. The conceptual simplicity and the low computational effort make the present RN modeling approach a useful tool for both the advanced interpretation and evaluation of potential DWC ferroelectrics.
中文翻译:
铌酸锂导电畴壁的电阻网络建模
此处应用2D电阻器网络(2D RN)的概念是为了模拟单晶铌酸锂(sc-LNO)中沿片状畴壁(DW)的电导率。RN建模方法的唯一输入是DW倾角分布,如先前相对于极坐标c所测量的-轴。然后仿真显示,欧姆电阻器的二维网络不仅充分考虑了实验中设想的不同边界条件,而且同样很好地提供了局部畴壁电导率(DWC)与DW倾斜角α之间的直接联系。此外,可以将RN模拟与通过扫描探针技术获得的局部尺度运输测量结果直接进行比较。概念上的简单性和低计算量使当前的RN建模方法成为潜在DWC铁电体的高级解释和评估的有用工具。
更新日期:2017-12-06
中文翻译:
铌酸锂导电畴壁的电阻网络建模
此处应用2D电阻器网络(2D RN)的概念是为了模拟单晶铌酸锂(sc-LNO)中沿片状畴壁(DW)的电导率。RN建模方法的唯一输入是DW倾角分布,如先前相对于极坐标c所测量的-轴。然后仿真显示,欧姆电阻器的二维网络不仅充分考虑了实验中设想的不同边界条件,而且同样很好地提供了局部畴壁电导率(DWC)与DW倾斜角α之间的直接联系。此外,可以将RN模拟与通过扫描探针技术获得的局部尺度运输测量结果直接进行比较。概念上的简单性和低计算量使当前的RN建模方法成为潜在DWC铁电体的高级解释和评估的有用工具。