Vortex Polarization States in Nanoscale Ferroelectric Arrays

被引：215

作者：

Rodriguez, B. J. ^{[1
]}

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

Liu, L. F. ^{[1
]}

Lee, W. ^{[2
]}

Naumov, I. I. ^{[3
]}

Bratkovsky, A. M. ^{[3
]}

Hesse, D. ^{[1
]}

Alexe, M. ^{[1
]}

机构：

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

[2] Korea Res Inst Standards & Sci, Yuseong 305340, Daejon, South Korea

[3] Hewlett Packard Labs, Palo Alto, CA 94304 USA

来源：

NANO LETTERS | 2009年 / 9卷 / 03期

基金：

芬兰科学院;

关键词：

CRYSTAL ORIENTATION DEPENDENCE; LEAD-ZIRCONATE-TITANATE; PIEZOELECTRIC PROPERTIES; ORDERED ARRAYS; THIN-FILMS;

D O I：

10.1021/nl8036646

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two-dimensional arrays of ferroelectric lead zirconate titanate (PZT) nanodots were fabricated using pulsed laser deposition through ultrathin anodic aluminum oxide membrane stencil masks. The static distribution of polarization configurations was Investigated using in- and out-of-plane plazoresponse force microscopy (PFM). The observed presence of an in-plane polarization component in nominally (001) oriented PZT suggests the existence of a significant deviation from the regular tetragonal structure that allows the formation of complex core-polarization states. Core-polarization states may indicate the presence of quasi-toroidal polarization ordering. The experimental results are compared with a theoretical model to determine the fingerprint of a vortex polarization state in PFM.

引用

页码：1127 / 1131

页数：5

共 37 条

[1] Size dependence of initial polarization direction in nanosized epitaxial PbTiO3 islands fabricated by hydrothermal epitaxy below Curie temperature -: art. no. 172901 [J].

Ahn, SH ;

Jung, WW ;

Choi, SK .

APPLIED PHYSICS LETTERS, 2005, 86 (17) :1-3

[2] The physics of ferroelectric memories [J].

Auciello, O ;

Scott, JF ;

Ramesh, R .

PHYSICS TODAY, 1998, 51 (07) :22-27

[3] Impact of misfit dislocations on the polarization instability of epitaxial nanostructured ferroelectric perovskites [J].

Chu, MW ;

Szafraniak, I ;

Scholz, R ;

Harnagea, C ;

Hesse, D ;

Alexe, M ;

Gösele, U .

NATURE MATERIALS, 2004, 3 (02) :87-90

[4] Crystal orientation dependence of piezoelectric properties in lead zirconate titanate: Theoretical expectation for thin films [J].

Du, XH ;

Belegundu, U ;

Uchino, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1997, 36 (9A) :5580-5587

[5] Crystal orientation dependence of piezoelectric properties of lead zirconate titanate near the morphotropic phase boundary [J].

Du, XH ;

Zheng, JH ;

Belegundu, U ;

Uchino, K .

APPLIED PHYSICS LETTERS, 1998, 72 (19) :2421-2423

[6] Crystal orientation dependence of piezoelectric properties of single crystal barium titanate [J].

Du, XH ;

Wang, QM ;

Belegundu, U ;

Bhalla, A ;

Uchino, K .

MATERIALS LETTERS, 1999, 40 (03) :109-113

[7] Ferroelectric domain switching in tri-glycine sulphate and barium-titanate bulk single crystals by scanning force microscopy [J].

Eng, LM ;

Abplanalp, M ;

Guner, P .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1998, 66 (Suppl 1) :S679-S683

[8] Nanoscale reconstruction of surface crystallography from three-dimensional polarization distribution in ferroelectric barium-titanate ceramics [J].

Eng, LM ;

Güntherodt, HJ ;

Schneider, GA ;

Köpke, U ;

Saldaña, JM .

APPLIED PHYSICS LETTERS, 1999, 74 (02) :233-235

[9] ON THE PROBLEM OF SUPERDIAMAGNETISM [J].

GINZBURG, VL ;

GORBATSEVICH, AA ;

KOPAYEV, YV ;

VOLKOV, BA .

SOLID STATE COMMUNICATIONS, 1984, 50 (04) :339-343

[10]

Gorbatsevich A. A., 1994, Ferroelectrics, V161, P321, DOI 10.1080/00150199408213381

← 1 2 3 4 →