Bubble polarization domain patterns in periodically ordered epitaxial ferroelectric nanodot arrays

被引：13

作者：

Gao, X. S. ^{[1
,2
]}

Xue, F. ^{[3
]}

Qin, M. H. ^{[1
]}

Liu, J. M. ^{[3
]}

Rodriguez, B. J. ^{[2
,4
]}

Liu, L. F. ^{[2
]}

Alexe, M. ^{[2
]}

Hesse, D. ^{[2
]}

机构：

[1] S China Normal Univ, Inst Adv Mat, Sch Phys & Telecommun Engn, Guangzhou 510006, Peoples R China

[2] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany

[3] Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[4] Univ Coll Dublin, Conway Inst Biomol & Biomed Res, Dublin 4, Ireland

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 05期

关键词：

NANOSCALE FERROELECTRICS; PHASE-TRANSITIONS; FORCE MICROSCOPY; NANOSTRUCTURES; STABILITY; DENSITY;

D O I：

10.1063/1.3623766

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, bubble polarization domains in periodically ordered ferroelectric Pb(Zr(0.4)Ti(0.6))O(3) nanodot arrays and their formation mechanisms have been investigated by piezoresponse force microscopy (PFM) and Monte-Carlo simulations. The PFM observations reveal the coexistence of single domain and apparent bubble domain patterns within the same nanodot array, which also exhibit dissimilar polarization reversal processes. The formation of various polarization configurations can be accounted for by the interplay of various factors, such as polarization anisotropy and depolarization field. Using Monte-Carlo simulation, we are able to reproduce bubble and single domains and further predict that these patterns can be tailored by varying the nanodot parameters, including dot height, aspect ratio, etc. (C) 2011 American Institute of Physics. [doi:10.1063/1.3623766]

引用

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